diff --git a/pkgs/applications/emulators/kega-fusion/default.nix b/pkgs/applications/emulators/kega-fusion/default.nix
index fda1ee74cebd..2805290392ac 100644
--- a/pkgs/applications/emulators/kega-fusion/default.nix
+++ b/pkgs/applications/emulators/kega-fusion/default.nix
@@ -39,12 +39,12 @@ stdenv.mkDerivation {
   version = "3.63x";
 
   src = fetchurl {
-    url = "http://www.carpeludum.com/download/Fusion363x.tar.gz";
+    url = "https://www.carpeludum.com/download/Fusion363x.tar.gz";
     sha256 = "14s6czy20h5khyy7q95hd7k77v17ssafv9l6lafkiysvj2nmw94g";
   };
 
   plugins = fetchurl {
-    url = "http://www.carpeludum.com/download/PluginsLinux.tar.gz";
+    url = "https://www.carpeludum.com/download/PluginsLinux.tar.gz";
     sha256 = "0d623cvh6n5ijj3wb64g93mxx2xbichsn7hj7brbb0ndw5cs70qj";
   };
 
diff --git a/pkgs/applications/graphics/gimp/2.0/default.nix b/pkgs/applications/graphics/gimp/2.0/default.nix
index 23d9c0c93b45..9dd68e31322e 100644
--- a/pkgs/applications/graphics/gimp/2.0/default.nix
+++ b/pkgs/applications/graphics/gimp/2.0/default.nix
@@ -63,7 +63,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   src = fetchurl {
-    url = "http://download.gimp.org/pub/gimp/v${lib.versions.majorMinor finalAttrs.version}/gimp-${finalAttrs.version}.tar.bz2";
+    url = "https://download.gimp.org/pub/gimp/v${lib.versions.majorMinor finalAttrs.version}/gimp-${finalAttrs.version}.tar.bz2";
     sha256 = "sha256-UKhF7sEciDH+hmFweVD1uERuNfMO37ms+Y+FwRM/hW4=";
   };
 
diff --git a/pkgs/applications/misc/ding/default.nix b/pkgs/applications/misc/ding/default.nix
index c2d4bb66f2f0..5be85e033846 100644
--- a/pkgs/applications/misc/ding/default.nix
+++ b/pkgs/applications/misc/ding/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   version = "1.9";
 
   src = fetchurl {
-    url = "http://ftp.tu-chemnitz.de/pub/Local/urz/ding/ding-${version}.tar.gz";
+    url = "https://ftp.tu-chemnitz.de/pub/Local/urz/ding/ding-${version}.tar.gz";
     sha256 = "sha256-aabIH894WihsBTo1LzIBzIZxxyhRYVxLcHpDQwmwmOU=";
   };
 
diff --git a/pkgs/applications/networking/mailreaders/notmuch/muchsync.nix b/pkgs/applications/networking/mailreaders/notmuch/muchsync.nix
index 61cae422b3a3..a0f362d6c493 100644
--- a/pkgs/applications/networking/mailreaders/notmuch/muchsync.nix
+++ b/pkgs/applications/networking/mailreaders/notmuch/muchsync.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
     inherit version;
   };
   src = fetchurl {
-    url = "http://www.muchsync.org/src/${pname}-${version}.tar.gz";
+    url = "https://www.muchsync.org/src/${pname}-${version}.tar.gz";
     hash = "sha256-+D4vb80O9IE0df3cjTkoVoZlTaX0FWWh6ams14Gjvqw=";
   };
   nativeBuildInputs = [ pkg-config ];
diff --git a/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix b/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix
index a6c6e3e5e6db..9591516d88b9 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird-bin/default.nix
@@ -93,7 +93,7 @@ let
       ;
     baseName = "thunderbird";
     basePath = "pkgs/applications/networking/mailreaders/thunderbird-bin";
-    baseUrl = "http://archive.mozilla.org/pub/thunderbird/releases/";
+    baseUrl = "https://archive.mozilla.org/pub/thunderbird/releases/";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/applications/networking/mailreaders/thunderbird-bin/release_esr_sources.nix b/pkgs/applications/networking/mailreaders/thunderbird-bin/release_esr_sources.nix
index 8deaf7dca693..3e2f43821d38 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird-bin/release_esr_sources.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird-bin/release_esr_sources.nix
@@ -2,1189 +2,1189 @@
   version = "140.8.1esr";
   sources = [
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/af/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/af/thunderbird-140.8.1esr.tar.xz";
       locale = "af";
       arch = "linux-x86_64";
       sha256 = "a2a6df485c32d95b71ee287593214f6fe93feadf7cf76c04c9f0172652a21cdc";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/ar/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/ar/thunderbird-140.8.1esr.tar.xz";
       locale = "ar";
       arch = "linux-x86_64";
       sha256 = "50bfb2f9a1a27ad63732a16a6d313a9444ff4c713b84a2ce242b1c17823d3453";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/ast/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/ast/thunderbird-140.8.1esr.tar.xz";
       locale = "ast";
       arch = "linux-x86_64";
       sha256 = "5b423b640a278fdb381e112763e72a5f9707b49e6f009407a0a7a8a0a81f5242";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/be/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/be/thunderbird-140.8.1esr.tar.xz";
       locale = "be";
       arch = "linux-x86_64";
       sha256 = "3e496569f5f7119f3ec6283558e9c789d105148b7dec60b2cf665cdd9fdf9435";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/bg/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/bg/thunderbird-140.8.1esr.tar.xz";
       locale = "bg";
       arch = "linux-x86_64";
       sha256 = "31bed156742b5b9262366585854fa272af840f8487b613b13dd86727b2d95390";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/br/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/br/thunderbird-140.8.1esr.tar.xz";
       locale = "br";
       arch = "linux-x86_64";
       sha256 = "88380e0616d2d7934bf22eba46f19a64ea3bdfedda36a314cbfd5aaa8dbc8729";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/ca/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/ca/thunderbird-140.8.1esr.tar.xz";
       locale = "ca";
       arch = "linux-x86_64";
       sha256 = "7cbea4a762de5432bd2b61825cfe6fab2a942e3dc9ff4e0c814bc2759306cbd5";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/cak/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/cak/thunderbird-140.8.1esr.tar.xz";
       locale = "cak";
       arch = "linux-x86_64";
       sha256 = "3c94e5d17e0368b6abdaa2c0b91dd111c1e2e16af55c7313a9eba8cd4ce2d6d6";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/cs/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/cs/thunderbird-140.8.1esr.tar.xz";
       locale = "cs";
       arch = "linux-x86_64";
       sha256 = "7d7c7b6e32c5989199eee307aa0816eec04a5e60e4d9d3129b5adfbde9dc5e75";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/cy/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/cy/thunderbird-140.8.1esr.tar.xz";
       locale = "cy";
       arch = "linux-x86_64";
       sha256 = "9d7931783730523e3cd194e714fd8daf5fac9cde314785c72951c5cc0b4fa9ec";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/da/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/da/thunderbird-140.8.1esr.tar.xz";
       locale = "da";
       arch = "linux-x86_64";
       sha256 = "ca5244d4a282d680d74faf6617af11d78a6f439fc778a7aada985bd704e15292";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/de/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/de/thunderbird-140.8.1esr.tar.xz";
       locale = "de";
       arch = "linux-x86_64";
       sha256 = "997467027a0f6285000df0201b3877eb5519423e08d0701517d832321cd2e077";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/dsb/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/dsb/thunderbird-140.8.1esr.tar.xz";
       locale = "dsb";
       arch = "linux-x86_64";
       sha256 = "785c88a25b3b86456e48e605707cdaf8e797560a45e9552c973a5a79ec7cd3cd";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/el/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/el/thunderbird-140.8.1esr.tar.xz";
       locale = "el";
       arch = "linux-x86_64";
       sha256 = "8c59e36dd60ee10a706a2014ce6e641470fe9860cbb26157d4c25b3bd4933149";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/en-CA/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/en-CA/thunderbird-140.8.1esr.tar.xz";
       locale = "en-CA";
       arch = "linux-x86_64";
       sha256 = "ac014e1627aec7ac848a858d917e778fcb9909408afbbc06e41bfda22cc74384";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/en-GB/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/en-GB/thunderbird-140.8.1esr.tar.xz";
       locale = "en-GB";
       arch = "linux-x86_64";
       sha256 = "620850f83520d09e58926de3b2a706be940eb897df6f750f2d5ce4efbf929f65";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/en-US/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/en-US/thunderbird-140.8.1esr.tar.xz";
       locale = "en-US";
       arch = "linux-x86_64";
       sha256 = "d48bbaceb92350534dc609c68c94c202740a1166788fc6b9851ea634e6027cd1";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/es-AR/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/es-AR/thunderbird-140.8.1esr.tar.xz";
       locale = "es-AR";
       arch = "linux-x86_64";
       sha256 = "e8ff0f9c3dabcf2d9d1721a38d9e7a2c947da4c964cf51ea71258535608e2a5e";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/es-ES/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/es-ES/thunderbird-140.8.1esr.tar.xz";
       locale = "es-ES";
       arch = "linux-x86_64";
       sha256 = "694dbae11787f1930552d9dc1c8f4c1075fd92fe5ac4b225d90d5deb5b715563";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/es-MX/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/es-MX/thunderbird-140.8.1esr.tar.xz";
       locale = "es-MX";
       arch = "linux-x86_64";
       sha256 = "8a4a9028f85c1798bc8e0a74d4094a5383d8fc433af485202d79852a819f81b7";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/et/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/et/thunderbird-140.8.1esr.tar.xz";
       locale = "et";
       arch = "linux-x86_64";
       sha256 = "1f778eaac6c26b155407d68119d4b8c5b5568a0b7966cc24b1c073fbf3e7944b";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/eu/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/eu/thunderbird-140.8.1esr.tar.xz";
       locale = "eu";
       arch = "linux-x86_64";
       sha256 = "33f9d1cf56652d29402b4142973493c886ba9ce3a18b3dec9f9c01c9c907a276";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/fi/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/fi/thunderbird-140.8.1esr.tar.xz";
       locale = "fi";
       arch = "linux-x86_64";
       sha256 = "23d1fe70727aac387e3599d2d87766b0b12ca80c02cf821a443bd4c81496358a";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/fr/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/fr/thunderbird-140.8.1esr.tar.xz";
       locale = "fr";
       arch = "linux-x86_64";
       sha256 = "986251b06821ca15d7d3902608d8d91f3b83128d1c0ef93e1420c47682f7783d";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/fy-NL/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/fy-NL/thunderbird-140.8.1esr.tar.xz";
       locale = "fy-NL";
       arch = "linux-x86_64";
       sha256 = "de17062530629435e748ac48e06c6500712bf430fdee08baa74e3fa63b7f2aab";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/ga-IE/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/ga-IE/thunderbird-140.8.1esr.tar.xz";
       locale = "ga-IE";
       arch = "linux-x86_64";
       sha256 = "76044251b1260a60dd79c92b74586be48eda9912eceb8c747ba92dc51b94cc44";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/gd/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/gd/thunderbird-140.8.1esr.tar.xz";
       locale = "gd";
       arch = "linux-x86_64";
       sha256 = "005605b6fc16111393da1031498d9b90e5ed08e1832dc316f3175bd6b1eb328e";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/gl/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/gl/thunderbird-140.8.1esr.tar.xz";
       locale = "gl";
       arch = "linux-x86_64";
       sha256 = "b82275a2782b5167d19681c64efa3957a15893490b9e068b0e0d48580ca5b1ac";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/he/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/he/thunderbird-140.8.1esr.tar.xz";
       locale = "he";
       arch = "linux-x86_64";
       sha256 = "b19179490601c0acabb179b006e416dec59b0babfff37c9bfa3238ee512e8fb3";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/hr/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/hr/thunderbird-140.8.1esr.tar.xz";
       locale = "hr";
       arch = "linux-x86_64";
       sha256 = "7be2a453115375c5e2a4e46b7f6d7f809713df402cced9483958a3a1053d676f";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/hsb/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/hsb/thunderbird-140.8.1esr.tar.xz";
       locale = "hsb";
       arch = "linux-x86_64";
       sha256 = "c5879ff7416edc616c3bd1362046d0650bdb20444f8b4879c06808467c260432";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/hu/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/hu/thunderbird-140.8.1esr.tar.xz";
       locale = "hu";
       arch = "linux-x86_64";
       sha256 = "0d007b516a9c09a6e48e734843df0093d6d9c92705b348feedfedd54972bd24f";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/hy-AM/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/hy-AM/thunderbird-140.8.1esr.tar.xz";
       locale = "hy-AM";
       arch = "linux-x86_64";
       sha256 = "1df90a34bca5232fb18b09fa825ac0b56f83ad61b188a80d0921c697bd04a0f7";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/id/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/id/thunderbird-140.8.1esr.tar.xz";
       locale = "id";
       arch = "linux-x86_64";
       sha256 = "4d33d6dfc17dbbc5e0643060e355a5eeab3ada4265f95af260d5449b497fe5d4";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/is/thunderbird-140.8.1esr.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/linux-x86_64/is/thunderbird-140.8.1esr.tar.xz";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/ja-JP-mac/Thunderbird%20140.8.1esr.dmg";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/ka/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/kab/Thunderbird%20140.8.1esr.dmg";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/kk/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/ko/Thunderbird%20140.8.1esr.dmg";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/lt/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/lv/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/lv/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/ms/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/nb-NO/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/nb-NO/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/nl/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/nl/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/nn-NO/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/pa-IN/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/pl/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/pl/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/pt-BR/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/pt-PT/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/pt-PT/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/rm/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/rm/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/ro/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/ru/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/ru/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/sk/Thunderbird%20140.8.1esr.dmg";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/sl/Thunderbird%20140.8.1esr.dmg";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/sq/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/sr/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/sr/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/sv-SE/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/th/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/tr/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/tr/Thunderbird%20140.8.1esr.dmg";
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       arch = "mac";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/uk/Thunderbird%20140.8.1esr.dmg";
       locale = "uk";
       arch = "mac";
       sha256 = "887f8aad21bd50f6a6e3c8f1a66550a8e8561ba8e92e9ab2933c93cf6bb8be16";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/uz/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/uz/Thunderbird%20140.8.1esr.dmg";
       locale = "uz";
       arch = "mac";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/vi/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/vi/Thunderbird%20140.8.1esr.dmg";
       locale = "vi";
       arch = "mac";
       sha256 = "9031ccf53c39a3b93ba07a080f864f09884122b0051ed9c0f58f99aa1663d51a";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/zh-CN/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/zh-CN/Thunderbird%20140.8.1esr.dmg";
       locale = "zh-CN";
       arch = "mac";
       sha256 = "16aabcfbd2351429b509090894798c5fa2f6988acbcdda7cf8fc5de1a8219a82";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/zh-TW/Thunderbird%20140.8.1esr.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/140.8.1esr/mac/zh-TW/Thunderbird%20140.8.1esr.dmg";
       locale = "zh-TW";
       arch = "mac";
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diff --git a/pkgs/applications/networking/mailreaders/thunderbird-bin/release_sources.nix b/pkgs/applications/networking/mailreaders/thunderbird-bin/release_sources.nix
index 6ca0720d6347..e0f4df69d182 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird-bin/release_sources.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird-bin/release_sources.nix
@@ -2,793 +2,793 @@
   version = "148.0.1";
   sources = [
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/af/thunderbird-148.0.1.tar.xz";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/ar/thunderbird-148.0.1.tar.xz";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/ast/thunderbird-148.0.1.tar.xz";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/be/thunderbird-148.0.1.tar.xz";
       locale = "be";
       arch = "linux-x86_64";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/bg/thunderbird-148.0.1.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/bg/thunderbird-148.0.1.tar.xz";
       locale = "bg";
       arch = "linux-x86_64";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/br/thunderbird-148.0.1.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/br/thunderbird-148.0.1.tar.xz";
       locale = "br";
       arch = "linux-x86_64";
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     {
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/ca/thunderbird-148.0.1.tar.xz";
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       arch = "linux-x86_64";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/cak/thunderbird-148.0.1.tar.xz";
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       arch = "linux-x86_64";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/cs/thunderbird-148.0.1.tar.xz";
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       arch = "linux-x86_64";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/cy/thunderbird-148.0.1.tar.xz";
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       arch = "linux-x86_64";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/da/thunderbird-148.0.1.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/da/thunderbird-148.0.1.tar.xz";
       locale = "da";
       arch = "linux-x86_64";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/de/thunderbird-148.0.1.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/de/thunderbird-148.0.1.tar.xz";
       locale = "de";
       arch = "linux-x86_64";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/dsb/thunderbird-148.0.1.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/dsb/thunderbird-148.0.1.tar.xz";
       locale = "dsb";
       arch = "linux-x86_64";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/el/thunderbird-148.0.1.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/el/thunderbird-148.0.1.tar.xz";
       locale = "el";
       arch = "linux-x86_64";
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     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/en-CA/thunderbird-148.0.1.tar.xz";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/linux-x86_64/en-CA/thunderbird-148.0.1.tar.xz";
       locale = "en-CA";
       arch = "linux-x86_64";
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+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/lv/Thunderbird%20148.0.1.dmg";
       locale = "lv";
       arch = "mac";
       sha256 = "0bd6d7908864f69ab067bddb5cca3d876fbac45817e7640ccf487332657305a4";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/ms/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/ms/Thunderbird%20148.0.1.dmg";
       locale = "ms";
       arch = "mac";
       sha256 = "23cd1f663a5b58700fb7b509f14b67e9ad0f447e19d0cbd59f000d06ef4647f7";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/nb-NO/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/nb-NO/Thunderbird%20148.0.1.dmg";
       locale = "nb-NO";
       arch = "mac";
       sha256 = "c15dbca5b59f8805394e1674b5ceb4255aeaa0eedd8c1a6d0e725f7c70393878";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/nl/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/nl/Thunderbird%20148.0.1.dmg";
       locale = "nl";
       arch = "mac";
       sha256 = "75a6ca45fe2e58a65779457bb8245053cba4c3cc3c2f8914c4bcfa0aab8457a2";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/nn-NO/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/nn-NO/Thunderbird%20148.0.1.dmg";
       locale = "nn-NO";
       arch = "mac";
       sha256 = "86b40d91c604ca800d2808017b3e025f1a279102dc135b4f08037818f62caab0";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/pa-IN/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/pa-IN/Thunderbird%20148.0.1.dmg";
       locale = "pa-IN";
       arch = "mac";
       sha256 = "db23f780620fb28a89594467ad922e76f888c8516842722d8f91e39975aea51c";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/pl/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/pl/Thunderbird%20148.0.1.dmg";
       locale = "pl";
       arch = "mac";
       sha256 = "594d8fe62e19e961dda6aceb1eb8f318bc67509dd7776b592f2c51a45b402229";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/pt-BR/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/pt-BR/Thunderbird%20148.0.1.dmg";
       locale = "pt-BR";
       arch = "mac";
       sha256 = "795439fb60115992efed8400ed78b304f5f3f406876e1b0c625fe11934c101aa";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/pt-PT/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/pt-PT/Thunderbird%20148.0.1.dmg";
       locale = "pt-PT";
       arch = "mac";
       sha256 = "2a8ebcc53821f8a130fe7369935dfa6bf7261720e2dd512715c1a9ddb0e0b635";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/rm/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/rm/Thunderbird%20148.0.1.dmg";
       locale = "rm";
       arch = "mac";
       sha256 = "d7ebb14d7b044f93861f3df6b2e9d982aace80243b4a26a58f0e69b8bc03f6f5";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/ro/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/ro/Thunderbird%20148.0.1.dmg";
       locale = "ro";
       arch = "mac";
       sha256 = "0ef619aa1033043cd34eba0a8060966c37d83d4165f99e365c277ffb9675a4c5";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/ru/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/ru/Thunderbird%20148.0.1.dmg";
       locale = "ru";
       arch = "mac";
       sha256 = "ebdaa819f2ddce483efb1d730e8aac61be0d27a6ddb69054419a3a7a8969c381";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/sk/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/sk/Thunderbird%20148.0.1.dmg";
       locale = "sk";
       arch = "mac";
       sha256 = "3191e02d1ebbe9c27de33b1636ea0d43367c814db8b97e069ae12c25b6bb404f";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/sl/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/sl/Thunderbird%20148.0.1.dmg";
       locale = "sl";
       arch = "mac";
       sha256 = "318319f833ea0ab67361e369ff52c96e65465fc21b9191dd873196435c44dbf7";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/sq/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/sq/Thunderbird%20148.0.1.dmg";
       locale = "sq";
       arch = "mac";
       sha256 = "21ff2f04469f0cfeee17d78b4791770aeeef9c29f174421d3dceef07cff3ba49";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/sr/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/sr/Thunderbird%20148.0.1.dmg";
       locale = "sr";
       arch = "mac";
       sha256 = "d4f6d75e40bc4a691e8490e277f080f165b7a083dde25b53df6c2085f5b2c7ab";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/sv-SE/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/sv-SE/Thunderbird%20148.0.1.dmg";
       locale = "sv-SE";
       arch = "mac";
       sha256 = "eb3e889e8c90273098ba0fd27369f511f7a319eb36ce9e62b0cc83e462c534ac";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/th/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/th/Thunderbird%20148.0.1.dmg";
       locale = "th";
       arch = "mac";
       sha256 = "a5c547343b650d425c9dc484895447d365220e98361b3a3f3207f8f25e7c1225";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/tr/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/tr/Thunderbird%20148.0.1.dmg";
       locale = "tr";
       arch = "mac";
       sha256 = "9ae9431d362b06c087c5bd95667b96c438dede84b435f35d97333bcf47e3effd";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/uk/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/uk/Thunderbird%20148.0.1.dmg";
       locale = "uk";
       arch = "mac";
       sha256 = "7c781df523ff5f3b5457b5508f9a7bca5484c909fb1196b82f15a7694947cce2";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/uz/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/uz/Thunderbird%20148.0.1.dmg";
       locale = "uz";
       arch = "mac";
       sha256 = "c94b894d9e9b179053b44c30a32a44f0ec986e29ec0728cfcdbdce000227d936";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/vi/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/vi/Thunderbird%20148.0.1.dmg";
       locale = "vi";
       arch = "mac";
       sha256 = "f47d75e887c8001210efdfa9c43c2c20ad5be52901c100972610ab85963b2fc4";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/zh-CN/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/zh-CN/Thunderbird%20148.0.1.dmg";
       locale = "zh-CN";
       arch = "mac";
       sha256 = "2e138c4db461358d63944f91aa3a05bf9dd669addae9d429564286287752a14e";
     }
     {
-      url = "http://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/zh-TW/Thunderbird%20148.0.1.dmg";
+      url = "https://archive.mozilla.org/pub/thunderbird/releases/148.0.1/mac/zh-TW/Thunderbird%20148.0.1.dmg";
       locale = "zh-TW";
       arch = "mac";
       sha256 = "667c0adfa78eb6de45b7946eea455de244e2bfdd233289cfb5dd1e3ba0707757";
diff --git a/pkgs/applications/radio/wsjtx/default.nix b/pkgs/applications/radio/wsjtx/default.nix
index a42513cbf613..6aabb7f824eb 100644
--- a/pkgs/applications/radio/wsjtx/default.nix
+++ b/pkgs/applications/radio/wsjtx/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   version = "2.7.0";
 
   src = fetchgit {
-    url = "http://git.code.sf.net/p/wsjt/wsjtx";
+    url = "https://git.code.sf.net/p/wsjt/wsjtx";
     rev = "wsjtx-${version}";
     hash = "sha256-AAPZTJUhz3x/28B9rk2uwFs1bkcEvaj+hOzAjpsFALQ=";
   };
diff --git a/pkgs/applications/terminal-emulators/rxvt-unicode/default.nix b/pkgs/applications/terminal-emulators/rxvt-unicode/default.nix
index 431126826a55..bc9c3faece4f 100644
--- a/pkgs/applications/terminal-emulators/rxvt-unicode/default.nix
+++ b/pkgs/applications/terminal-emulators/rxvt-unicode/default.nix
@@ -60,7 +60,7 @@ stdenv.mkDerivation {
   inherit pname version;
 
   src = fetchurl {
-    url = "http://dist.schmorp.de/rxvt-unicode/Attic/rxvt-unicode-${version}.tar.bz2";
+    url = "https://dist.schmorp.de/rxvt-unicode/Attic/rxvt-unicode-${version}.tar.bz2";
     sha256 = "qqE/y8FJ/g8/OR+TMnlYD3Spb9MS1u0GuP8DwtRmcug=";
   };
 
diff --git a/pkgs/applications/window-managers/evilwm/default.nix b/pkgs/applications/window-managers/evilwm/default.nix
index 29ed99b732cf..832f7306bb6e 100644
--- a/pkgs/applications/window-managers/evilwm/default.nix
+++ b/pkgs/applications/window-managers/evilwm/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   version = "1.4.3";
 
   src = fetchurl {
-    url = "http://www.6809.org.uk/evilwm/evilwm-${version}.tar.gz";
+    url = "https://www.6809.org.uk/evilwm/evilwm-${version}.tar.gz";
     sha256 = "sha256-1ZRbILEskdskEvrA29o/ucPsjeu44bEJg4mSsrG75dQ=";
   };
 
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
     license = {
       shortName = "evilwm";
       fullName = "Custom, inherited from aewm and 9wm";
-      url = "http://www.6809.org.uk/evilwm/";
+      url = "https://www.6809.org.uk/evilwm/";
       free = true;
     }; # like BSD/MIT, but Share-Alike'y; See README.
     maintainers = [ ];
diff --git a/pkgs/by-name/bi/bibclean/package.nix b/pkgs/by-name/bi/bibclean/package.nix
index 23a04a34fabe..82669b8dda64 100644
--- a/pkgs/by-name/bi/bibclean/package.nix
+++ b/pkgs/by-name/bi/bibclean/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.07";
 
   src = fetchurl {
-    url = "http://ftp.math.utah.edu/pub/bibclean/bibclean-${finalAttrs.version}.tar.xz";
+    url = "https://ftp.math.utah.edu/pub/bibclean/bibclean-${finalAttrs.version}.tar.xz";
     sha256 = "sha256-kZM2eC6ePCBOYPVkhf0fjdZ562IvyP0fSDNZXuEBkaY=";
   };
 
diff --git a/pkgs/by-name/bi/binsort/package.nix b/pkgs/by-name/bi/binsort/package.nix
index f9b059586a65..f82749c0a9b2 100644
--- a/pkgs/by-name/bi/binsort/package.nix
+++ b/pkgs/by-name/bi/binsort/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.4-1";
 
   src = fetchurl {
-    url = "http://neoscientists.org/~tmueller/binsort/download/binsort-${finalAttrs.version}.tar.gz";
+    url = "https://neoscientists.org/~tmueller/binsort/download/binsort-${finalAttrs.version}.tar.gz";
     hash = "sha256-l9T0LlDslxCgZYf8NrbsRly7bREOTGwptLteeg3TNRg=";
   };
 
diff --git a/pkgs/by-name/bl/bluesnarfer/package.nix b/pkgs/by-name/bl/bluesnarfer/package.nix
index a611ab95453b..c48533b1720d 100644
--- a/pkgs/by-name/bl/bluesnarfer/package.nix
+++ b/pkgs/by-name/bl/bluesnarfer/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.1";
 
   src = fetchzip {
-    url = "http://www.alighieri.org/tools/bluesnarfer.tar.gz";
+    url = "https://www.alighieri.org/tools/bluesnarfer.tar.gz";
     stripRoot = false;
     hash = "sha256-HGdrJZohKIsOkLETBdHz80w6vxmG25aMEWXrQlpMgRw=";
   };
diff --git a/pkgs/by-name/bp/bpm-tools/package.nix b/pkgs/by-name/bp/bpm-tools/package.nix
index af2b096e731d..eb3cc603ac42 100644
--- a/pkgs/by-name/bp/bpm-tools/package.nix
+++ b/pkgs/by-name/bp/bpm-tools/package.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.3";
 
   src = fetchurl {
-    url = "http://www.pogo.org.uk/~mark/bpm-tools/releases/bpm-tools-${finalAttrs.version}.tar.gz";
+    url = "https://www.pogo.org.uk/~mark/bpm-tools/releases/bpm-tools-${finalAttrs.version}.tar.gz";
     sha256 = "151vfbs8h3cibs7kbdps5pqrsxhpjv16y2iyfqbxzsclylgfivrp";
   };
 
diff --git a/pkgs/by-name/bs/bsdbuild/package.nix b/pkgs/by-name/bs/bsdbuild/package.nix
index 6c151264ee44..78fac2c4a1f2 100644
--- a/pkgs/by-name/bs/bsdbuild/package.nix
+++ b/pkgs/by-name/bs/bsdbuild/package.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.1";
 
   src = fetchurl {
-    url = "http://stable.hypertriton.com/bsdbuild/bsdbuild-${finalAttrs.version}.tar.gz";
+    url = "https://stable.hypertriton.com/bsdbuild/bsdbuild-${finalAttrs.version}.tar.gz";
     sha256 = "1zrdjh7a6z4khhfw9zrp490afq306cpl5v8wqz2z55ys7k1n5ifl";
   };
 
diff --git a/pkgs/by-name/bu/bupc/package.nix b/pkgs/by-name/bu/bupc/package.nix
index e25dbf1e111b..dbee20c4ae37 100644
--- a/pkgs/by-name/bu/bupc/package.nix
+++ b/pkgs/by-name/bu/bupc/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2020.12.0";
 
   src = fetchurl {
-    url = "http://upc.lbl.gov/download/release/berkeley_upc-${finalAttrs.version}.tar.gz";
+    url = "https://upc.lbl.gov/download/release/berkeley_upc-${finalAttrs.version}.tar.gz";
     hash = "sha256-JdpFORlXHpCQE+TivoQQnjQlxQN7C8BNfHvTOSwXbYQ=";
   };
 
diff --git a/pkgs/by-name/ca/calculix-ccx/package.nix b/pkgs/by-name/ca/calculix-ccx/package.nix
index 72100a5c4b70..408b1e1ddc35 100644
--- a/pkgs/by-name/ca/calculix-ccx/package.nix
+++ b/pkgs/by-name/ca/calculix-ccx/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.22";
 
   src = fetchurl {
-    url = "http://www.dhondt.de/ccx_${finalAttrs.version}.src.tar.bz2";
+    url = "https://www.dhondt.de/ccx_${finalAttrs.version}.src.tar.bz2";
     hash = "sha256-OpTcx3WjH1cCKXNLNB1rBjAevcdZhj35Aci5vxhUwLw=";
   };
 
diff --git a/pkgs/by-name/ca/canon-cups-ufr2/package.nix b/pkgs/by-name/ca/canon-cups-ufr2/package.nix
index 740b35f73b52..303eb6ea0052 100644
--- a/pkgs/by-name/ca/canon-cups-ufr2/package.nix
+++ b/pkgs/by-name/ca/canon-cups-ufr2/package.nix
@@ -45,7 +45,7 @@ let
 
   versionNoDots = builtins.replaceStrings [ "." ] [ "" ] version;
   src_canon = fetchurl {
-    url = "http://gdlp01.c-wss.com/gds/${dl}/linux-UFRII-drv-v${versionNoDots}-${suffix1}-${suffix2}.tar.gz";
+    url = "https://gdlp01.c-wss.com/gds/${dl}/linux-UFRII-drv-v${versionNoDots}-${suffix1}-${suffix2}.tar.gz";
     hash = "sha256-6QJaaABubEaERpJxfVGxghB8yIb2pCaQZ6+VoqjmYrk=";
   };
 
diff --git a/pkgs/by-name/ca/caps/package.nix b/pkgs/by-name/ca/caps/package.nix
index fbe3c02827d0..8e74330e5672 100644
--- a/pkgs/by-name/ca/caps/package.nix
+++ b/pkgs/by-name/ca/caps/package.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "caps";
   version = "0.9.26";
   src = fetchurl {
-    url = "http://www.quitte.de/dsp/caps_${finalAttrs.version}.tar.bz2";
+    url = "https://www.quitte.de/dsp/caps_${finalAttrs.version}.tar.bz2";
     sha256 = "1jcq9y51vdnk93q27r566y9qmddvadhr4ddnvkiypaq5rrdnqjg7";
   };
 
diff --git a/pkgs/by-name/cf/cfr/package.nix b/pkgs/by-name/cf/cfr/package.nix
index 77f681fc594a..348c8f7a5949 100644
--- a/pkgs/by-name/cf/cfr/package.nix
+++ b/pkgs/by-name/cf/cfr/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.152";
 
   src = fetchurl {
-    url = "http://www.benf.org/other/cfr/cfr_${finalAttrs.version}.jar";
+    url = "https://www.benf.org/other/cfr/cfr_${finalAttrs.version}.jar";
     sha256 = "sha256-9obo897Td9e8h9IWqQ6elRLfQVbnWwbGVaFmSK6HZbI=";
   };
 
diff --git a/pkgs/by-name/ch/chntpw/package.nix b/pkgs/by-name/ch/chntpw/package.nix
index 94e8aa17624c..fe3d1e9e34aa 100644
--- a/pkgs/by-name/ch/chntpw/package.nix
+++ b/pkgs/by-name/ch/chntpw/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   version = "140201";
 
   src = fetchurl {
-    url = "http://pogostick.net/~pnh/ntpasswd/chntpw-source-${version}.zip";
+    url = "https://pogostick.net/~pnh/ntpasswd/chntpw-source-${version}.zip";
     sha256 = "1k1cxsj0221dpsqi5yibq2hr7n8xywnicl8yyaicn91y8h2hkqln";
   };
 
diff --git a/pkgs/by-name/ci/ciopfs/package.nix b/pkgs/by-name/ci/ciopfs/package.nix
index 7f504e09813b..c910fcd15088 100644
--- a/pkgs/by-name/ci/ciopfs/package.nix
+++ b/pkgs/by-name/ci/ciopfs/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.4";
 
   src = fetchurl {
-    url = "http://www.brain-dump.org/projects/ciopfs/ciopfs-${finalAttrs.version}.tar.gz";
+    url = "https://www.brain-dump.org/projects/ciopfs/ciopfs-${finalAttrs.version}.tar.gz";
     sha256 = "0sr9i9b3qfwbfvzvk00yrrg3x2xqk1njadbldkvn7hwwa4z5bm9l";
   };
 
diff --git a/pkgs/by-name/cl/cl-launch/package.nix b/pkgs/by-name/cl/cl-launch/package.nix
index a43b56dac306..5b8e9eabb12f 100644
--- a/pkgs/by-name/cl/cl-launch/package.nix
+++ b/pkgs/by-name/cl/cl-launch/package.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "4.1.4.1";
 
   src = fetchurl {
-    url = "http://common-lisp.net/project/xcvb/cl-launch/cl-launch-${finalAttrs.version}.tar.gz";
+    url = "https://common-lisp.net/project/xcvb/cl-launch/cl-launch-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-v5aURs2Verhn2HmGiijvY9br20OTPFrOGBWsb6cHhSQ=";
   };
 
diff --git a/pkgs/by-name/cm/cmt/package.nix b/pkgs/by-name/cm/cmt/package.nix
index 8c4c005448c5..7efc670f70c8 100644
--- a/pkgs/by-name/cm/cmt/package.nix
+++ b/pkgs/by-name/cm/cmt/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.18";
 
   src = fetchurl {
-    url = "http://www.ladspa.org/download/cmt_${finalAttrs.version}.tgz";
+    url = "https://www.ladspa.org/download/cmt_${finalAttrs.version}.tgz";
     sha256 = "sha256-qC+GNt4fSto4ahmaAXqc13Wkm0nnFrEejdP3I8k99so=";
   };
 
diff --git a/pkgs/by-name/cn/cnijfilter_4_00/package.nix b/pkgs/by-name/cn/cnijfilter_4_00/package.nix
index 86f75fa8a5f7..501892653930 100644
--- a/pkgs/by-name/cn/cnijfilter_4_00/package.nix
+++ b/pkgs/by-name/cn/cnijfilter_4_00/package.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation {
   version = "4.00";
 
   src = fetchzip {
-    url = "http://gdlp01.c-wss.com/gds/5/0100005515/01/cnijfilter-source-4.00-1.tar.gz";
+    url = "https://gdlp01.c-wss.com/gds/5/0100005515/01/cnijfilter-source-4.00-1.tar.gz";
     sha256 = "1f6vpx1z3qa88590i5m0s49j9n90vpk81xmw6pvj0nfd3qbvzkya";
   };
 
diff --git a/pkgs/by-name/cn/cnstrokeorder/package.nix b/pkgs/by-name/cn/cnstrokeorder/package.nix
index 0ba277b8f9d8..44d4d21b886f 100644
--- a/pkgs/by-name/cn/cnstrokeorder/package.nix
+++ b/pkgs/by-name/cn/cnstrokeorder/package.nix
@@ -9,7 +9,7 @@ stdenvNoCC.mkDerivation rec {
   version = "0.0.4.7";
 
   src = fetchurl {
-    url = "http://rtega.be/chmn/CNstrokeorder-${version}.ttf";
+    url = "https://rtega.be/chmn/CNstrokeorder-${version}.ttf";
     hash = "sha256-YYtOcUvt1V0DwAs/vf9KltcmYCFJNirvwjGyOK4JpIY=";
   };
 
diff --git a/pkgs/by-name/co/collapseos-cvm/package.nix b/pkgs/by-name/co/collapseos-cvm/package.nix
index 48b519ff1e15..38b3d03a6b00 100644
--- a/pkgs/by-name/co/collapseos-cvm/package.nix
+++ b/pkgs/by-name/co/collapseos-cvm/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "collapseos-cvm";
   version = "20220316";
   src = fetchurl {
-    url = "http://collapseos.org/files/collapseos-${finalAttrs.version}.tar.gz";
+    url = "https://collapseos.org/files/collapseos-${finalAttrs.version}.tar.gz";
     hash = "sha256-8bt6wj93T82K9fqtuC/mctkMCzfvW0taxv6QAKeJb5g=";
   };
   buildInputs = [ ncurses ];
diff --git a/pkgs/by-name/co/colorless/package.nix b/pkgs/by-name/co/colorless/package.nix
index 142c4c70569a..a5c5292c547f 100644
--- a/pkgs/by-name/co/colorless/package.nix
+++ b/pkgs/by-name/co/colorless/package.nix
@@ -14,7 +14,7 @@ stdenvNoCC.mkDerivation rec {
   version = "109";
 
   src = fetchurl {
-    url = "http://software.kimmo.suominen.com/colorless-${version}.tar.gz";
+    url = "https://software.kimmo.suominen.com/colorless-${version}.tar.gz";
     sha256 = "039a140fa11cf153cc4d03e4f753b7ff142cab88ff116b7600ccf9edee81927c";
   };
 
diff --git a/pkgs/by-name/co/corosync/package.nix b/pkgs/by-name/co/corosync/package.nix
index 0836ed467781..97427d6769fe 100644
--- a/pkgs/by-name/co/corosync/package.nix
+++ b/pkgs/by-name/co/corosync/package.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.1.9";
 
   src = fetchurl {
-    url = "http://build.clusterlabs.org/corosync/releases/corosync-${finalAttrs.version}.tar.gz";
+    url = "https://build.clusterlabs.org/corosync/releases/corosync-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-IDNUu93uGpezxQoHbq6JxjX0Bt1nTMrvyUu5CSrNlTU=";
   };
 
diff --git a/pkgs/by-name/cp/cpuid/package.nix b/pkgs/by-name/cp/cpuid/package.nix
index 9156bdd4d577..04422df94d16 100644
--- a/pkgs/by-name/cp/cpuid/package.nix
+++ b/pkgs/by-name/cp/cpuid/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "20260220";
 
   src = fetchurl {
-    url = "http://etallen.com/cpuid/cpuid-${finalAttrs.version}.src.tar.gz";
+    url = "https://etallen.com/cpuid/cpuid-${finalAttrs.version}.src.tar.gz";
     sha256 = "sha256-52IP11rlkRcfEQxJuZo5EokzoMqtAjto1KOEub4Lj/s=";
   };
 
diff --git a/pkgs/by-name/cr/cryptoverif/package.nix b/pkgs/by-name/cr/cryptoverif/package.nix
index 7d86585df43d..538e8e2c3e0a 100644
--- a/pkgs/by-name/cr/cryptoverif/package.nix
+++ b/pkgs/by-name/cr/cryptoverif/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.12";
 
   src = fetchurl {
-    url = "http://prosecco.gforge.inria.fr/personal/bblanche/cryptoverif/cryptoverif${finalAttrs.version}.tar.gz";
+    url = "https://prosecco.gforge.inria.fr/personal/bblanche/cryptoverif/cryptoverif${finalAttrs.version}.tar.gz";
     hash = "sha256-d3MIYb57+95bB493hdtHiGnTOronYaQo1Qqq1TcJh1c=";
   };
 
diff --git a/pkgs/by-name/cu/cups-dymo/package.nix b/pkgs/by-name/cu/cups-dymo/package.nix
index 19b6cbb00c48..dc6162fd8a75 100644
--- a/pkgs/by-name/cu/cups-dymo/package.nix
+++ b/pkgs/by-name/cu/cups-dymo/package.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   dl-name = "dymo-cups-drivers-1.4.0";
 
   src = fetchurl {
-    url = "http://download.dymo.com/dymo/Software/Download%20Drivers/Linux/Download/${dl-name}.tar.gz";
+    url = "https://download.dymo.com/dymo/Software/Download%20Drivers/Linux/Download/${dl-name}.tar.gz";
     sha256 = "0wagsrz3q7yrkzb5ws0m5faq68rqnqfap9p98sgk5jl6x7krf1y6";
   };
 
diff --git a/pkgs/by-name/cu/cups-toshiba-estudio/package.nix b/pkgs/by-name/cu/cups-toshiba-estudio/package.nix
index b506f523e654..8c2f43ab9cea 100644
--- a/pkgs/by-name/cu/cups-toshiba-estudio/package.nix
+++ b/pkgs/by-name/cu/cups-toshiba-estudio/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation {
   version = "7.89";
 
   src = fetchurl {
-    url = "http://business.toshiba.com/downloads/KB/f1Ulds/15178/TOSHIBA_ColorMFP_CUPS.tar";
+    url = "https://business.toshiba.com/downloads/KB/f1Ulds/15178/TOSHIBA_ColorMFP_CUPS.tar";
     sha256 = "0qz4r7q55i0adf4fv3aqnfqgi2pz3jb1jixkqm9x6nk4vanyjf4r";
   };
 
diff --git a/pkgs/by-name/cu/cutee/package.nix b/pkgs/by-name/cu/cutee/package.nix
index f1c7223aa062..4d623832064c 100644
--- a/pkgs/by-name/cu/cutee/package.nix
+++ b/pkgs/by-name/cu/cutee/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.4.2";
 
   src = fetchurl {
-    url = "http://www.codesink.org/download/cutee-${finalAttrs.version}.tar.gz";
+    url = "https://www.codesink.org/download/cutee-${finalAttrs.version}.tar.gz";
     sha256 = "18bzvhzx8k24mpcim5669n3wg9hd0sfsxj8zjpbr24hywrlppgc2";
   };
 
diff --git a/pkgs/by-name/cv/cvsq/package.nix b/pkgs/by-name/cv/cvsq/package.nix
index 11ad7e53053c..3f1b0f6bd4bd 100644
--- a/pkgs/by-name/cv/cvsq/package.nix
+++ b/pkgs/by-name/cv/cvsq/package.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.11";
 
   src = fetchurl {
-    url = "http://www.linta.de/~aehlig/cvsq/cvsq-${finalAttrs.version}.tgz";
+    url = "https://www.linta.de/~aehlig/cvsq/cvsq-${finalAttrs.version}.tgz";
     sha256 = "0491k4skk3jyyd6plp2kcihmxxav9rsch7vd1yi697m2fqckp5ws";
   };
 
diff --git a/pkgs/by-name/da/daemon/package.nix b/pkgs/by-name/da/daemon/package.nix
index 6471eac596b7..31ae52587a49 100644
--- a/pkgs/by-name/da/daemon/package.nix
+++ b/pkgs/by-name/da/daemon/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.8.4";
 
   src = fetchurl {
-    url = "http://libslack.org/daemon/download/daemon-${finalAttrs.version}.tar.gz";
+    url = "https://libslack.org/daemon/download/daemon-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-+iiFmtNBywoLASwRwnGBT4cEggE7SfcQYAMh03mIfNE=";
   };
 
diff --git a/pkgs/by-name/db/dbxml/package.nix b/pkgs/by-name/db/dbxml/package.nix
index 7bb97b53407f..df33336fb35a 100644
--- a/pkgs/by-name/db/dbxml/package.nix
+++ b/pkgs/by-name/db/dbxml/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "6.1.4";
 
   src = fetchurl {
-    url = "http://download.oracle.com/berkeley-db/dbxml-${finalAttrs.version}.tar.gz";
+    url = "https://download.oracle.com/berkeley-db/dbxml-${finalAttrs.version}.tar.gz";
     sha256 = "a8fc8f5e0c3b6e42741fa4dfc3b878c982ff8f5e5f14843f6a7e20d22e64251a";
   };
 
diff --git a/pkgs/by-name/de/detach/package.nix b/pkgs/by-name/de/detach/package.nix
index a83f3721817c..0b1469c06202 100644
--- a/pkgs/by-name/de/detach/package.nix
+++ b/pkgs/by-name/de/detach/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.2.3";
 
   src = fetchzip {
-    url = "http://inglorion.net/download/detach-${finalAttrs.version}.tar.bz2";
+    url = "https://inglorion.net/download/detach-${finalAttrs.version}.tar.bz2";
     hash = "sha256-nnhJGtmPlTeqM20FAKRyhhSMViTXFpQT0A1ol4lhsoc=";
   };
 
diff --git a/pkgs/by-name/dh/dhex/package.nix b/pkgs/by-name/dh/dhex/package.nix
index c3ae0517edb2..762eec4483b1 100644
--- a/pkgs/by-name/dh/dhex/package.nix
+++ b/pkgs/by-name/dh/dhex/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.69";
 
   src = fetchurl {
-    url = "http://www.dettus.net/dhex/dhex_${finalAttrs.version}.tar.gz";
+    url = "https://www.dettus.net/dhex/dhex_${finalAttrs.version}.tar.gz";
     sha256 = "06y4lrp29f2fh303ijk1xhspa1d4x4dm6hnyw3dd8szi3k6hnwsj";
   };
 
diff --git a/pkgs/by-name/di/dieharder/package.nix b/pkgs/by-name/di/dieharder/package.nix
index e99f3c4286a8..e12640551fb8 100644
--- a/pkgs/by-name/di/dieharder/package.nix
+++ b/pkgs/by-name/di/dieharder/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.31.1";
 
   src = fetchurl {
-    url = "http://webhome.phy.duke.edu/~rgb/General/dieharder/dieharder-${finalAttrs.version}.tgz";
+    url = "https://webhome.phy.duke.edu/~rgb/General/dieharder/dieharder-${finalAttrs.version}.tgz";
     hash = "sha256-bP8P+DlMVTVJrHQzNZzPyVX7JnlCYDFGIN+l5M1Lcn8=";
   };
 
diff --git a/pkgs/by-name/dj/djvu2pdf/package.nix b/pkgs/by-name/dj/djvu2pdf/package.nix
index 915211a0a99a..9d15d9a77fb7 100644
--- a/pkgs/by-name/dj/djvu2pdf/package.nix
+++ b/pkgs/by-name/dj/djvu2pdf/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "djvu2pdf";
 
   src = fetchurl {
-    url = "http://0x2a.at/site/projects/djvu2pdf/djvu2pdf-${finalAttrs.version}.tar.gz";
+    url = "https://0x2a.at/site/projects/djvu2pdf/djvu2pdf-${finalAttrs.version}.tar.gz";
     sha256 = "0v2ax30m7j1yi4m02nzn9rc4sn4vzqh5vywdh96r64j4pwvn5s5g";
   };
 
diff --git a/pkgs/by-name/do/docbook2mdoc/package.nix b/pkgs/by-name/do/docbook2mdoc/package.nix
index cb3b9f3b16e8..eee92685f463 100644
--- a/pkgs/by-name/do/docbook2mdoc/package.nix
+++ b/pkgs/by-name/do/docbook2mdoc/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.0.9";
 
   src = fetchurl {
-    url = "http://mdocml.bsd.lv/docbook2mdoc/snapshots/docbook2mdoc-${finalAttrs.version}.tgz";
+    url = "https://mdocml.bsd.lv/docbook2mdoc/snapshots/docbook2mdoc-${finalAttrs.version}.tgz";
     sha256 = "07il80sg89xf6ym4bry6hxdacfzqgbwkxzyf7bjaihmw5jj0lclk";
   };
 
diff --git a/pkgs/by-name/do/dog/package.nix b/pkgs/by-name/do/dog/package.nix
index b8b89758403a..756973986474 100644
--- a/pkgs/by-name/do/dog/package.nix
+++ b/pkgs/by-name/do/dog/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.7";
 
   src = fetchurl {
-    url = "http://archive.debian.org/debian/pool/main/d/dog/dog_${finalAttrs.version}.orig.tar.gz";
+    url = "https://archive.debian.org/debian/pool/main/d/dog/dog_${finalAttrs.version}.orig.tar.gz";
     sha256 = "3ef25907ec5d1dfb0df94c9388c020b593fbe162d7aaa9bd08f35d2a125af056";
   };
 
diff --git a/pkgs/by-name/du/duktape/package.nix b/pkgs/by-name/du/duktape/package.nix
index 31a733872abb..21d6e7d7783d 100644
--- a/pkgs/by-name/du/duktape/package.nix
+++ b/pkgs/by-name/du/duktape/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "duktape";
   version = "2.7.0";
   src = fetchurl {
-    url = "http://duktape.org/duktape-${finalAttrs.version}.tar.xz";
+    url = "https://duktape.org/duktape-${finalAttrs.version}.tar.xz";
     sha256 = "sha256-kPjS+otVZ8aJmDDd7ywD88J5YLEayiIvoXqnrGE8KJA=";
   };
 
diff --git a/pkgs/by-name/eb/ebtables/package.nix b/pkgs/by-name/eb/ebtables/package.nix
index e3b392bd4d02..b996298f4e25 100644
--- a/pkgs/by-name/eb/ebtables/package.nix
+++ b/pkgs/by-name/eb/ebtables/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.0.11";
 
   src = fetchurl {
-    url = "http://ftp.netfilter.org/pub/ebtables/ebtables-${finalAttrs.version}.tar.gz";
+    url = "https://ftp.netfilter.org/pub/ebtables/ebtables-${finalAttrs.version}.tar.gz";
     sha256 = "0apxgmkhsk3vxn9q3libxn3dgrdljrxyy4mli2gk49m7hi3na7xp";
   };
 
diff --git a/pkgs/by-name/ec/ec2-api-tools/package.nix b/pkgs/by-name/ec/ec2-api-tools/package.nix
index 372ffd0e7d95..c324ffe9b3e3 100644
--- a/pkgs/by-name/ec/ec2-api-tools/package.nix
+++ b/pkgs/by-name/ec/ec2-api-tools/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   version = "1.7.5.1";
 
   src = fetchurl {
-    url = "http://s3.amazonaws.com/ec2-downloads/${pname}-${version}.zip";
+    url = "https://s3.amazonaws.com/ec2-downloads/${pname}-${version}.zip";
     sha256 = "sha256-hRq+MEA+4chqPr3d9bS//X70tYcRBTD+rfAJVNmuLzo=";
   };
 
diff --git a/pkgs/by-name/ec/eclipse-mat/package.nix b/pkgs/by-name/ec/eclipse-mat/package.nix
index 1bd1223b828d..3f0dfba9ca2a 100644
--- a/pkgs/by-name/ec/eclipse-mat/package.nix
+++ b/pkgs/by-name/ec/eclipse-mat/package.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   version = pVersion;
 
   src = fetchurl {
-    url = "http://ftp.halifax.rwth-aachen.de/eclipse//mat/${baseVersion}/rcp/MemoryAnalyzer-${version}-linux.gtk.x86_64.zip";
+    url = "https://ftp.halifax.rwth-aachen.de/eclipse//mat/${baseVersion}/rcp/MemoryAnalyzer-${version}-linux.gtk.x86_64.zip";
     sha256 = "sha256-icmo5zdK0XaH32kXwZUVaQ0VPSGEgvlLr7v7PtdbmCg=";
   };
 
diff --git a/pkgs/by-name/er/ergoscf/package.nix b/pkgs/by-name/er/ergoscf/package.nix
index de4d74093589..9514bb89f1e4 100644
--- a/pkgs/by-name/er/ergoscf/package.nix
+++ b/pkgs/by-name/er/ergoscf/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.8.2";
 
   src = fetchurl {
-    url = "http://www.ergoscf.org/source/tarfiles/ergo-${finalAttrs.version}.tar.gz";
+    url = "https://www.ergoscf.org/source/tarfiles/ergo-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-U0NVREEZ8HI0Q0ZcbwvZsYA76PWMh7bqgDG1uaUc01c=";
   };
 
diff --git a/pkgs/by-name/ex/exonerate/package.nix b/pkgs/by-name/ex/exonerate/package.nix
index 0c629edf12d9..3c8668e26574 100644
--- a/pkgs/by-name/ex/exonerate/package.nix
+++ b/pkgs/by-name/ex/exonerate/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "exonerate";
 
   src = fetchurl {
-    url = "http://ftp.ebi.ac.uk/pub/software/vertebrategenomics/exonerate/exonerate-${finalAttrs.version}.tar.gz";
+    url = "https://ftp.ebi.ac.uk/pub/software/vertebrategenomics/exonerate/exonerate-${finalAttrs.version}.tar.gz";
     sha256 = "0hj0m9xygiqsdxvbg79wq579kbrx1mdrabi2bzqz2zn9qwfjcjgq";
   };
 
diff --git a/pkgs/by-name/fa/fairymax/package.nix b/pkgs/by-name/fa/fairymax/package.nix
index a28e8eed65ca..e07a806b99a6 100644
--- a/pkgs/by-name/fa/fairymax/package.nix
+++ b/pkgs/by-name/fa/fairymax/package.nix
@@ -9,12 +9,12 @@ stdenv.mkDerivation rec {
   version = "4.8";
 
   src = fetchurl {
-    url = "http://home.hccnet.nl/h.g.muller/fmax4_8w.c";
+    url = "https://home.hccnet.nl/h.g.muller/fmax4_8w.c";
     hash = "sha256-ikn+CA5lxtDYSDT+Nsv1tfORhKW6/vlmHcGAT9SFfQc=";
   };
 
   ini = fetchurl {
-    url = "http://home.hccnet.nl/h.g.muller/fmax.ini";
+    url = "https://home.hccnet.nl/h.g.muller/fmax.ini";
     hash = "sha256-lh2ivXx4jNdWn3pT1WKKNEvkVQ31JfdDx+vqNx44nf8=";
   };
 
diff --git a/pkgs/by-name/fa/fastjet/package.nix b/pkgs/by-name/fa/fastjet/package.nix
index e50b2f0d491b..2f165241ff7a 100644
--- a/pkgs/by-name/fa/fastjet/package.nix
+++ b/pkgs/by-name/fa/fastjet/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.4.3";
 
   src = fetchurl {
-    url = "http://fastjet.fr/repo/fastjet-${finalAttrs.version}.tar.gz";
+    url = "https://fastjet.fr/repo/fastjet-${finalAttrs.version}.tar.gz";
     hash = "sha256-zBdUcb+rhla4xhg6jl6a0F1fdQbkbzISqagjCQW49qM=";
   };
 
diff --git a/pkgs/by-name/fc/fcrackzip/package.nix b/pkgs/by-name/fc/fcrackzip/package.nix
index b90f8b92565f..f9d70983b652 100644
--- a/pkgs/by-name/fc/fcrackzip/package.nix
+++ b/pkgs/by-name/fc/fcrackzip/package.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "fcrackzip";
   version = "1.0";
   src = fetchurl {
-    url = "http://oldhome.schmorp.de/marc/data/fcrackzip-${finalAttrs.version}.tar.gz";
+    url = "https://oldhome.schmorp.de/marc/data/fcrackzip-${finalAttrs.version}.tar.gz";
     sha256 = "0l1qsk949vnz18k4vjf3ppq8p497966x4c7f2yx18x8pk35whn2a";
   };
 
diff --git a/pkgs/by-name/ff/ffado/package.nix b/pkgs/by-name/ff/ffado/package.nix
index 9a9a8b6dd7d3..0258e15639d6 100644
--- a/pkgs/by-name/ff/ffado/package.nix
+++ b/pkgs/by-name/ff/ffado/package.nix
@@ -46,7 +46,7 @@ stdenv.mkDerivation rec {
   ];
 
   src = fetchurl {
-    url = "http://www.ffado.org/files/libffado-${version}.tgz";
+    url = "https://www.ffado.org/files/libffado-${version}.tgz";
     hash = "sha256-xELFL60Ryv1VE7tOhGyFHxAchIT4karFRe0ZDo/U0Q8=";
   };
 
diff --git a/pkgs/by-name/fi/fil-plugins/package.nix b/pkgs/by-name/fi/fil-plugins/package.nix
index 5c38c340ab66..d863acf2c78b 100644
--- a/pkgs/by-name/fi/fil-plugins/package.nix
+++ b/pkgs/by-name/fi/fil-plugins/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.3.0";
 
   src = fetchurl {
-    url = "http://kokkinizita.linuxaudio.org/linuxaudio/downloads/FIL-plugins-${finalAttrs.version}.tar.bz2";
+    url = "https://kokkinizita.linuxaudio.org/linuxaudio/downloads/FIL-plugins-${finalAttrs.version}.tar.bz2";
     hash = "sha256-HAvycSEZZfZwoVp3g7QWcwfbdyZKwWJKBuVmeWTajuk=";
   };
 
diff --git a/pkgs/by-name/fl/flac/package.nix b/pkgs/by-name/fl/flac/package.nix
index 93e57cc8952d..1c977e815837 100644
--- a/pkgs/by-name/fl/flac/package.nix
+++ b/pkgs/by-name/fl/flac/package.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation (finalAttrs: {
   # This prevents huge numbers of rebuilds for pandoc / haskell-updates.
   # It also enables manpages for platforms where pandoc is not available.
   src = fetchurl {
-    url = "http://downloads.xiph.org/releases/flac/flac-${finalAttrs.version}.tar.xz";
+    url = "https://downloads.xiph.org/releases/flac/flac-${finalAttrs.version}.tar.xz";
     hash = "sha256-8sHHZZKoL//4QTujxKEpm2x6sGxzTe4D/YhjBIXCuSA=";
   };
 
diff --git a/pkgs/by-name/fl/flexibee/package.nix b/pkgs/by-name/fl/flexibee/package.nix
index 5c57691911d2..6ad85f01f161 100644
--- a/pkgs/by-name/fl/flexibee/package.nix
+++ b/pkgs/by-name/fl/flexibee/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   inherit version;
 
   src = fetchurl {
-    url = "http://download.flexibee.eu/download/${majorVersion}/${version}/${pname}-${version}.tar.gz";
+    url = "https://download.flexibee.eu/download/${majorVersion}/${version}/${pname}-${version}.tar.gz";
     sha256 = "sha256-WorRyfjWucV8UhAjvuW+22CRzPcz5tjXF7Has4wrLMI=";
   };
 
diff --git a/pkgs/by-name/fl/flpsed/package.nix b/pkgs/by-name/fl/flpsed/package.nix
index 5984ceefb580..6dc2cd562c36 100644
--- a/pkgs/by-name/fl/flpsed/package.nix
+++ b/pkgs/by-name/fl/flpsed/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.7.3";
 
   src = fetchurl {
-    url = "http://www.flpsed.org/flpsed-${finalAttrs.version}.tar.gz";
+    url = "https://www.flpsed.org/flpsed-${finalAttrs.version}.tar.gz";
     sha256 = "0vngqxanykicabhfdznisv82k5ypkxwg0s93ms9ribvhpm8vf2xp";
   };
 
diff --git a/pkgs/by-name/fo/fondu/package.nix b/pkgs/by-name/fo/fondu/package.nix
index f4094ef60f69..984600836a62 100644
--- a/pkgs/by-name/fo/fondu/package.nix
+++ b/pkgs/by-name/fo/fondu/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "fondu";
 
   src = fetchurl {
-    url = "http://fondu.sourceforge.net/fondu_src-${finalAttrs.version}.tgz";
+    url = "https://fondu.sourceforge.net/fondu_src-${finalAttrs.version}.tgz";
     sha256 = "152prqad9jszjmm4wwqrq83zk13ypsz09n02nrk1gg0fcxfm7fr2";
   };
 
diff --git a/pkgs/by-name/ge/gentium-book-basic/package.nix b/pkgs/by-name/ge/gentium-book-basic/package.nix
index efd11b2bf868..4549e9ae0186 100644
--- a/pkgs/by-name/ge/gentium-book-basic/package.nix
+++ b/pkgs/by-name/ge/gentium-book-basic/package.nix
@@ -9,7 +9,7 @@ stdenvNoCC.mkDerivation rec {
   version = "1.102";
 
   src = fetchzip {
-    url = "http://software.sil.org/downloads/r/gentium/GentiumBasic_${lib.versions.major version}${lib.versions.minor version}.zip";
+    url = "https://software.sil.org/downloads/r/gentium/GentiumBasic_${lib.versions.major version}${lib.versions.minor version}.zip";
     hash = "sha256-oCmpl95MJRfCV25cg/4cf8AwQWnoymXasSss1ziOPoE=";
   };
 
diff --git a/pkgs/by-name/ge/gentium-book/package.nix b/pkgs/by-name/ge/gentium-book/package.nix
index 30080ccce838..1eeaed998dfe 100644
--- a/pkgs/by-name/ge/gentium-book/package.nix
+++ b/pkgs/by-name/ge/gentium-book/package.nix
@@ -9,7 +9,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   version = "7.000";
 
   src = fetchzip {
-    url = "http://software.sil.org/downloads/r/gentium/GentiumBook-${finalAttrs.version}.zip";
+    url = "https://software.sil.org/downloads/r/gentium/GentiumBook-${finalAttrs.version}.zip";
     hash = "sha256-A/QZX8OYrifaxChC08SNOaspdnSr8PxOtYgFAwUc5WY=";
   };
 
diff --git a/pkgs/by-name/ge/gentium-plus/package.nix b/pkgs/by-name/ge/gentium-plus/package.nix
index cd043d91e477..2328eea00232 100644
--- a/pkgs/by-name/ge/gentium-plus/package.nix
+++ b/pkgs/by-name/ge/gentium-plus/package.nix
@@ -9,7 +9,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   version = "6.200";
 
   src = fetchzip {
-    url = "http://software.sil.org/downloads/r/gentium/GentiumPlus-${finalAttrs.version}.zip";
+    url = "https://software.sil.org/downloads/r/gentium/GentiumPlus-${finalAttrs.version}.zip";
     hash = "sha256-gpVOtmF4Kp3y1Rm00c4o3WQEskO7mY1Z5SVaYHI0hzg=";
   };
 
diff --git a/pkgs/by-name/ge/gentium/package.nix b/pkgs/by-name/ge/gentium/package.nix
index 86af847e9793..3d495be9854a 100644
--- a/pkgs/by-name/ge/gentium/package.nix
+++ b/pkgs/by-name/ge/gentium/package.nix
@@ -9,7 +9,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   version = "7.000";
 
   src = fetchzip {
-    url = "http://software.sil.org/downloads/r/gentium/Gentium-${finalAttrs.version}.zip";
+    url = "https://software.sil.org/downloads/r/gentium/Gentium-${finalAttrs.version}.zip";
     hash = "sha256-RBBecFdi/yyFfBk1CcQebOuAdKNUczpwOP52zVtbc2o=";
   };
 
diff --git a/pkgs/by-name/gf/gfan/package.nix b/pkgs/by-name/gf/gfan/package.nix
index 9393d3fc70b8..9c1d1864dc48 100644
--- a/pkgs/by-name/gf/gfan/package.nix
+++ b/pkgs/by-name/gf/gfan/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.6.2";
 
   src = fetchurl {
-    url = "http://home.math.au.dk/jensen/software/gfan/gfan${finalAttrs.version}.tar.gz";
+    url = "https://home.math.au.dk/jensen/software/gfan/gfan${finalAttrs.version}.tar.gz";
     sha256 = "02pihqb1lb76a0xbfwjzs1cd6ay3ldfxsm8dvsbl6qs3vkjxax56";
   };
 
diff --git a/pkgs/by-name/gg/ggz_base_libs/package.nix b/pkgs/by-name/gg/ggz_base_libs/package.nix
index 147c865a88b4..c786301280d5 100644
--- a/pkgs/by-name/gg/ggz_base_libs/package.nix
+++ b/pkgs/by-name/gg/ggz_base_libs/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.99.5";
 
   src = fetchurl {
-    url = "http://mirrors.ibiblio.org/pub/mirrors/ggzgamingzone/ggz/snapshots/ggz-base-libs-snapshot-${finalAttrs.version}.tar.gz";
+    url = "https://mirrors.ibiblio.org/pub/mirrors/ggzgamingzone/ggz/snapshots/ggz-base-libs-snapshot-${finalAttrs.version}.tar.gz";
     sha256 = "1cw1vg0fbj36zyggnzidx9cbjwfc1yr4zqmsipxnvns7xa2awbdk";
   };
 
diff --git a/pkgs/by-name/gk/gkrellm/package.nix b/pkgs/by-name/gk/gkrellm/package.nix
index a7d8285068fd..60ff3c0cc037 100644
--- a/pkgs/by-name/gk/gkrellm/package.nix
+++ b/pkgs/by-name/gk/gkrellm/package.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.5.1";
 
   src = fetchurl {
-    url = "http://gkrellm.srcbox.net/releases/gkrellm-${finalAttrs.version}.tar.bz2";
+    url = "https://gkrellm.srcbox.net/releases/gkrellm-${finalAttrs.version}.tar.bz2";
     hash = "sha256-CJ48HtOYSC5oLJkAtQTqFmphRKbJ+gQecMW7ymsXfmM=";
   };
 
diff --git a/pkgs/by-name/gl/gl2ps/package.nix b/pkgs/by-name/gl/gl2ps/package.nix
index 5377c2e9f13d..b305a15925fc 100644
--- a/pkgs/by-name/gl/gl2ps/package.nix
+++ b/pkgs/by-name/gl/gl2ps/package.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.4.2";
 
   src = fetchurl {
-    url = "http://geuz.org/gl2ps/src/gl2ps-${finalAttrs.version}.tgz";
+    url = "https://geuz.org/gl2ps/src/gl2ps-${finalAttrs.version}.tgz";
     sha256 = "1sgzv547h7hrskb9qd0x5yp45kmhvibjwj2mfswv95lg070h074d";
   };
 
diff --git a/pkgs/by-name/go/gorilla-bin/package.nix b/pkgs/by-name/go/gorilla-bin/package.nix
index 366fe54ae811..05decf3d183b 100644
--- a/pkgs/by-name/go/gorilla-bin/package.nix
+++ b/pkgs/by-name/go/gorilla-bin/package.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   src = fetchurl {
     name = "gorilla1537_64.bin";
-    url = "http://gorilla.dp100.com/downloads/gorilla1537_64.bin";
+    url = "https://gorilla.dp100.com/downloads/gorilla1537_64.bin";
     sha256 = "19ir6x4c01825hpx2wbbcxkk70ymwbw4j03v8b2xc13ayylwzx0r";
   };
 
diff --git a/pkgs/by-name/gr/grepcidr/package.nix b/pkgs/by-name/gr/grepcidr/package.nix
index 572ffb8d9530..c32acfcf0da6 100644
--- a/pkgs/by-name/gr/grepcidr/package.nix
+++ b/pkgs/by-name/gr/grepcidr/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.0";
 
   src = fetchurl {
-    url = "http://www.pc-tools.net/files/unix/grepcidr-${finalAttrs.version}.tar.gz";
+    url = "https://www.pc-tools.net/files/unix/grepcidr-${finalAttrs.version}.tar.gz";
     sha256 = "1yzpa1nigmmp4hir6377hrkpp0z6jnxgccaw2jbqgydbglvnm231";
   };
 
diff --git a/pkgs/by-name/gy/gyre-fonts/package.nix b/pkgs/by-name/gy/gyre-fonts/package.nix
index 5e47fa1305a2..fad37668b565 100644
--- a/pkgs/by-name/gy/gyre-fonts/package.nix
+++ b/pkgs/by-name/gy/gyre-fonts/package.nix
@@ -9,7 +9,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   version = "2.501";
 
   src = fetchzip {
-    url = "http://www.gust.org.pl/projects/e-foundry/tex-gyre/whole/tg${
+    url = "https://www.gust.org.pl/projects/e-foundry/tex-gyre/whole/tg${
       lib.replaceStrings [ "." ] [ "_" ] finalAttrs.version
     }otf.zip";
     hash = "sha256-mRPI/rDsx1vDVItG7h29I7VNPYqgSPqChXS6/gVgfNc=";
diff --git a/pkgs/by-name/he/hepmc2/package.nix b/pkgs/by-name/he/hepmc2/package.nix
index a8ffe2f615d5..714c9f4891af 100644
--- a/pkgs/by-name/he/hepmc2/package.nix
+++ b/pkgs/by-name/he/hepmc2/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.06.11";
 
   src = fetchurl {
-    url = "http://hepmc.web.cern.ch/hepmc/releases/HepMC-${finalAttrs.version}.tar.gz";
+    url = "https://hepmc.web.cern.ch/hepmc/releases/HepMC-${finalAttrs.version}.tar.gz";
     sha256 = "1pp89bs05nv60wjk1690ndwh4dsd5mk20bzsd4a2lklysdifvb6f";
   };
 
diff --git a/pkgs/by-name/hp/hpcg/package.nix b/pkgs/by-name/hp/hpcg/package.nix
index 37e78647b042..030d729ae3cf 100644
--- a/pkgs/by-name/hp/hpcg/package.nix
+++ b/pkgs/by-name/hp/hpcg/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.1";
 
   src = fetchurl {
-    url = "http://www.hpcg-benchmark.org/downloads/hpcg-${finalAttrs.version}.tar.gz";
+    url = "https://www.hpcg-benchmark.org/downloads/hpcg-${finalAttrs.version}.tar.gz";
     sha256 = "197lw2nwmzsmfsbvgvi8z7kj69n374kgfzzp8pkmk7mp2vkk991k";
   };
 
diff --git a/pkgs/by-name/hp/hpl/package.nix b/pkgs/by-name/hp/hpl/package.nix
index dc10078d5d95..b9076d77ad70 100644
--- a/pkgs/by-name/hp/hpl/package.nix
+++ b/pkgs/by-name/hp/hpl/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.3";
 
   src = fetchurl {
-    url = "http://www.netlib.org/benchmark/hpl/hpl-${finalAttrs.version}.tar.gz";
+    url = "https://www.netlib.org/benchmark/hpl/hpl-${finalAttrs.version}.tar.gz";
     sha256 = "0c18c7fzlqxifz1bf3izil0bczv3a7nsv0dn6winy3ik49yw3i9j";
   };
 
diff --git a/pkgs/by-name/ic/icecast/package.nix b/pkgs/by-name/ic/icecast/package.nix
index 770ce90b5f8c..94d50ecdcb8e 100644
--- a/pkgs/by-name/ic/icecast/package.nix
+++ b/pkgs/by-name/ic/icecast/package.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.5.0";
 
   src = fetchurl {
-    url = "http://downloads.xiph.org/releases/icecast/icecast-${finalAttrs.version}.tar.gz";
+    url = "https://downloads.xiph.org/releases/icecast/icecast-${finalAttrs.version}.tar.gz";
     hash = "sha256-2aoHx0Ka7BnZUP9v1CXDcfdxWM00/yIPwZGywYbGfHo=";
   };
 
diff --git a/pkgs/by-name/ic/iconnamingutils/package.nix b/pkgs/by-name/ic/iconnamingutils/package.nix
index f24d83484b3c..ff242e85a2e5 100644
--- a/pkgs/by-name/ic/iconnamingutils/package.nix
+++ b/pkgs/by-name/ic/iconnamingutils/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.8.90";
 
   src = fetchurl {
-    url = "http://tango.freedesktop.org/releases/icon-naming-utils-${finalAttrs.version}.tar.gz";
+    url = "https://tango.freedesktop.org/releases/icon-naming-utils-${finalAttrs.version}.tar.gz";
     sha256 = "071fj2jm5kydlz02ic5sylhmw6h2p3cgrm3gwdfabinqkqcv4jh4";
   };
 
diff --git a/pkgs/by-name/if/ifmetric/package.nix b/pkgs/by-name/if/ifmetric/package.nix
index 322e8b4f3bd2..50586e8fd180 100644
--- a/pkgs/by-name/if/ifmetric/package.nix
+++ b/pkgs/by-name/if/ifmetric/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.3";
 
   src = fetchurl {
-    url = "http://0pointer.de/lennart/projects/ifmetric/ifmetric-${finalAttrs.version}.tar.gz";
+    url = "https://0pointer.de/lennart/projects/ifmetric/ifmetric-${finalAttrs.version}.tar.gz";
     sha256 = "1v0s5x81jzwnnl7hr254d4nkyc8qcv983pzr6vqmbr9l9q553a0g";
   };
 
diff --git a/pkgs/by-name/if/iftop/package.nix b/pkgs/by-name/if/iftop/package.nix
index 283a214a2082..a867121f8979 100644
--- a/pkgs/by-name/if/iftop/package.nix
+++ b/pkgs/by-name/if/iftop/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.0pre4";
 
   src = fetchurl {
-    url = "http://ex-parrot.com/pdw/iftop/download/iftop-${finalAttrs.version}.tar.gz";
+    url = "https://ex-parrot.com/pdw/iftop/download/iftop-${finalAttrs.version}.tar.gz";
     sha256 = "15sgkdyijb7vbxpxjavh5qm5nvyii3fqcg9mzvw7fx8s6zmfwczp";
   };
 
diff --git a/pkgs/by-name/il/ilbc/package.nix b/pkgs/by-name/il/ilbc/package.nix
index 73dfdf329eb0..f2fc7f0b4ade 100644
--- a/pkgs/by-name/il/ilbc/package.nix
+++ b/pkgs/by-name/il/ilbc/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   script = ./extract-cfile.awk;
 
   src = fetchurl {
-    url = "http://www.ietf.org/rfc/rfc3951.txt";
+    url = "https://www.ietf.org/rfc/rfc3951.txt";
     sha256 = "0zf4mvi3jzx6zjrfl2rbhl2m68pzbzpf1vbdmn7dqbfpcb67jpdy";
   };
 
diff --git a/pkgs/by-name/im/iml/package.nix b/pkgs/by-name/im/iml/package.nix
index 16531a4c5e4c..1a8c2511d7b7 100644
--- a/pkgs/by-name/im/iml/package.nix
+++ b/pkgs/by-name/im/iml/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "iml";
   version = "1.0.5";
   src = fetchurl {
-    url = "http://www.cs.uwaterloo.ca/~astorjoh/iml-${finalAttrs.version}.tar.bz2";
+    url = "https://www.cs.uwaterloo.ca/~astorjoh/iml-${finalAttrs.version}.tar.bz2";
     sha256 = "0akwhhz9b40bz6lrfxpamp7r7wkk48p455qbn04mfnl9a1l6db8x";
   };
   buildInputs = [
diff --git a/pkgs/by-name/io/iozone/package.nix b/pkgs/by-name/io/iozone/package.nix
index d807a43b9f09..d0a31d286279 100644
--- a/pkgs/by-name/io/iozone/package.nix
+++ b/pkgs/by-name/io/iozone/package.nix
@@ -24,12 +24,12 @@ stdenv.mkDerivation rec {
   version = "3.507";
 
   src = fetchurl {
-    url = "http://www.iozone.org/src/current/iozone${lib.replaceStrings [ "." ] [ "_" ] version}.tar";
+    url = "https://www.iozone.org/src/current/iozone${lib.replaceStrings [ "." ] [ "_" ] version}.tar";
     hash = "sha256-HoCHraBW9dgBjuC8dmhtQW/CJR7QMDgFXb0K940eXOM=";
   };
 
   license = fetchurl {
-    url = "http://www.iozone.org/docs/Iozone_License.txt";
+    url = "https://www.iozone.org/docs/Iozone_License.txt";
     hash = "sha256-O/8yztxKBI/UKs6vwv9mq16Rn3cf/UHpSxdVnAPVCYw=";
   };
 
diff --git a/pkgs/by-name/it/itsx/package.nix b/pkgs/by-name/it/itsx/package.nix
index a6d51625e7e8..a59ebed5838c 100644
--- a/pkgs/by-name/it/itsx/package.nix
+++ b/pkgs/by-name/it/itsx/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "itsx";
 
   src = fetchurl {
-    url = "http://microbiology.se/sw/ITSx_${finalAttrs.version}.tar.gz";
+    url = "https://microbiology.se/sw/ITSx_${finalAttrs.version}.tar.gz";
     sha256 = "0lrmy2n3ax7f208k0k8l3yz0j5cpz05hv4hx1nnxzn0c51z1pc31";
   };
 
diff --git a/pkgs/by-name/ja/jack_oscrolloscope/package.nix b/pkgs/by-name/ja/jack_oscrolloscope/package.nix
index ec2f88ad353e..0ba5b46cb4c6 100644
--- a/pkgs/by-name/ja/jack_oscrolloscope/package.nix
+++ b/pkgs/by-name/ja/jack_oscrolloscope/package.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.7";
 
   src = fetchurl {
-    url = "http://das.nasophon.de/download/jack_oscrolloscope-${finalAttrs.version}.tar.gz";
+    url = "https://das.nasophon.de/download/jack_oscrolloscope-${finalAttrs.version}.tar.gz";
     sha256 = "1pl55in0sj7h5r06n1v91im7d18pplvhbjhjm1fdl39zwnyxiash";
   };
 
diff --git a/pkgs/by-name/ja/java-cup/package.nix b/pkgs/by-name/ja/java-cup/package.nix
index c91666c67808..30e13f614e62 100644
--- a/pkgs/by-name/ja/java-cup/package.nix
+++ b/pkgs/by-name/ja/java-cup/package.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "11b-20160615";
 
   src = fetchurl {
-    url = "http://www2.cs.tum.edu/projects/cup/releases/java-cup-src-${finalAttrs.version}.tar.gz";
+    url = "https://www2.cs.tum.edu/projects/cup/releases/java-cup-src-${finalAttrs.version}.tar.gz";
     hash = "sha256-4OdzYG5FzhqorROD5jk9U+2dzyhh5D76gZT1Z+kdv/o=";
   };
 
diff --git a/pkgs/by-name/jd/jdom/package.nix b/pkgs/by-name/jd/jdom/package.nix
index 2337d94d3c93..9c93b92375de 100644
--- a/pkgs/by-name/jd/jdom/package.nix
+++ b/pkgs/by-name/jd/jdom/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.0.6.1";
 
   src = fetchzip {
-    url = "http://www.jdom.org/dist/binary/jdom-${finalAttrs.version}.zip";
+    url = "https://www.jdom.org/dist/binary/jdom-${finalAttrs.version}.zip";
     stripRoot = false;
     hash = "sha256-Y++mlO+7N5EU2NhRzLl5x5WXNqu/2tDO/NpNhfRegcg=";
   };
diff --git a/pkgs/by-name/jf/jflex/package.nix b/pkgs/by-name/jf/jflex/package.nix
index 0b1adfcf1fb7..1758dd664c67 100644
--- a/pkgs/by-name/jf/jflex/package.nix
+++ b/pkgs/by-name/jf/jflex/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
   version = "1.9.1";
 
   src = fetchurl {
-    url = "http://jflex.de/release/jflex-${version}.tar.gz";
+    url = "https://jflex.de/release/jflex-${version}.tar.gz";
     sha256 = "sha256-4MHp7vkf9t8E1z+l6v8T86ArZ5/uFHTlzK4AciTfbfY=";
   };
 
diff --git a/pkgs/by-name/jy/jython/package.nix b/pkgs/by-name/jy/jython/package.nix
index c0ce9c3b41ef..b5d3ddde71bb 100644
--- a/pkgs/by-name/jy/jython/package.nix
+++ b/pkgs/by-name/jy/jython/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.7.4";
 
   src = fetchurl {
-    url = "http://search.maven.org/remotecontent?filepath=org/python/jython-standalone/${finalAttrs.version}/jython-standalone-${finalAttrs.version}.jar";
+    url = "https://search.maven.org/remotecontent?filepath=org/python/jython-standalone/${finalAttrs.version}/jython-standalone-${finalAttrs.version}.jar";
     sha256 = "sha256-H7oXae/8yLGfXhBDa8gnShWM6YhVnyV5J8JMc7sTfzw=";
   };
 
diff --git a/pkgs/by-name/ka/kawkab-mono-font/package.nix b/pkgs/by-name/ka/kawkab-mono-font/package.nix
index 9915f0ae52b4..c3a0571c1324 100644
--- a/pkgs/by-name/ka/kawkab-mono-font/package.nix
+++ b/pkgs/by-name/ka/kawkab-mono-font/package.nix
@@ -9,7 +9,7 @@ stdenvNoCC.mkDerivation {
   version = "20151015";
 
   src = fetchzip {
-    url = "http://makkuk.com/kawkab-mono/downloads/kawkab-mono-0.1.zip";
+    url = "https://makkuk.com/kawkab-mono/downloads/kawkab-mono-0.1.zip";
     stripRoot = false;
     hash = "sha256-arZTzXj7Ba5G4WF3eZVGNaONhOsYVPih9iBgsN/lg14=";
   };
diff --git a/pkgs/by-name/ke/keyfuzz/package.nix b/pkgs/by-name/ke/keyfuzz/package.nix
index 68fe91b03093..0f4c29bee4d4 100644
--- a/pkgs/by-name/ke/keyfuzz/package.nix
+++ b/pkgs/by-name/ke/keyfuzz/package.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
   };
 
   src = fetchurl {
-    url = "http://0pointer.de/lennart/projects/keyfuzz/keyfuzz-0.2.tar.gz";
+    url = "https://0pointer.de/lennart/projects/keyfuzz/keyfuzz-0.2.tar.gz";
     sha256 = "0xv9ymivp8fnyc5xcyh1vamxnx90bzw66wlld813fvm6q2gsiknk";
   };
 
diff --git a/pkgs/by-name/lc/lcab/package.nix b/pkgs/by-name/lc/lcab/package.nix
index a82c5ca70be3..ac481c70019c 100644
--- a/pkgs/by-name/lc/lcab/package.nix
+++ b/pkgs/by-name/lc/lcab/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   src = fetchurl {
     # Original site is no longer available
-    url = "http://deb.debian.org/debian/pool/main/l/lcab/lcab_${finalAttrs.version}.orig.tar.gz";
+    url = "https://deb.debian.org/debian/pool/main/l/lcab/lcab_${finalAttrs.version}.orig.tar.gz";
     hash = "sha256-Bl8sF5O2XyhHHA9xt88SCnBk8o0cRLB8q/SewOl/H8g=";
   };
 
diff --git a/pkgs/by-name/li/libaacs/package.nix b/pkgs/by-name/li/libaacs/package.nix
index 00a0123aa8cf..3f5200e8168c 100644
--- a/pkgs/by-name/li/libaacs/package.nix
+++ b/pkgs/by-name/li/libaacs/package.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.11.1";
 
   src = fetchurl {
-    url = "http://get.videolan.org/libaacs/${finalAttrs.version}/libaacs-${finalAttrs.version}.tar.bz2";
+    url = "https://get.videolan.org/libaacs/${finalAttrs.version}/libaacs-${finalAttrs.version}.tar.bz2";
     sha256 = "sha256-qIqg6+TJinf3rv/ZKrPvZKxUjGuCLoJIqLkmclvqCjk=";
   };
 
diff --git a/pkgs/by-name/li/libagar/package.nix b/pkgs/by-name/li/libagar/package.nix
index 8d5fb0023923..0335ab5a37a1 100644
--- a/pkgs/by-name/li/libagar/package.nix
+++ b/pkgs/by-name/li/libagar/package.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.5.0";
 
   src = fetchurl {
-    url = "http://stable.hypertriton.com/agar/agar-${finalAttrs.version}.tar.gz";
+    url = "https://stable.hypertriton.com/agar/agar-${finalAttrs.version}.tar.gz";
     sha256 = "001wcqk5z67qg0raw9zlwmv62drxiwqykvsbk10q2mrc6knjsd42";
   };
 
diff --git a/pkgs/by-name/li/libasyncns/package.nix b/pkgs/by-name/li/libasyncns/package.nix
index 91cab5cc4bea..2ead8a3d208a 100644
--- a/pkgs/by-name/li/libasyncns/package.nix
+++ b/pkgs/by-name/li/libasyncns/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.8";
 
   src = fetchurl {
-    url = "http://0pointer.de/lennart/projects/libasyncns/libasyncns-${finalAttrs.version}.tar.gz";
+    url = "https://0pointer.de/lennart/projects/libasyncns/libasyncns-${finalAttrs.version}.tar.gz";
     sha256 = "0x5b6lcic4cd7q0bx00x93kvpyzl7n2abbgvqbrlzrfb8vknc6jg";
   };
 
diff --git a/pkgs/by-name/li/libatasmart/package.nix b/pkgs/by-name/li/libatasmart/package.nix
index 010e177b6be9..593f3f9fefd4 100644
--- a/pkgs/by-name/li/libatasmart/package.nix
+++ b/pkgs/by-name/li/libatasmart/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.19";
 
   src = fetchurl {
-    url = "http://0pointer.de/public/libatasmart-${finalAttrs.version}.tar.xz";
+    url = "https://0pointer.de/public/libatasmart-${finalAttrs.version}.tar.xz";
     sha256 = "138gvgdwk6h4ljrjsr09pxk1nrki4b155hqdzyr8mlk3bwsfmw31";
   };
 
diff --git a/pkgs/by-name/li/libbdplus/package.nix b/pkgs/by-name/li/libbdplus/package.nix
index 99dd4ec4aedc..41b9561bd2be 100644
--- a/pkgs/by-name/li/libbdplus/package.nix
+++ b/pkgs/by-name/li/libbdplus/package.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.2.0";
 
   src = fetchurl {
-    url = "http://get.videolan.org/libbdplus/${finalAttrs.version}/libbdplus-${finalAttrs.version}.tar.bz2";
+    url = "https://get.videolan.org/libbdplus/${finalAttrs.version}/libbdplus-${finalAttrs.version}.tar.bz2";
     sha256 = "sha256-uT7qPq7zPW6RVdLDSwaMUFSTqlpJNuYydPQ0KrD0Clg=";
   };
 
diff --git a/pkgs/by-name/li/libcss/package.nix b/pkgs/by-name/li/libcss/package.nix
index 30f8eb48e262..75c1edbe4f5c 100644
--- a/pkgs/by-name/li/libcss/package.nix
+++ b/pkgs/by-name/li/libcss/package.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.9.2";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libcss-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libcss-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-LfIVu+w01R1gwaBLAbLfTV0Y9RDx86evS4DN21ZxFU4=";
   };
 
diff --git a/pkgs/by-name/li/libdaemon/package.nix b/pkgs/by-name/li/libdaemon/package.nix
index 619647b65865..e71e21ebdc2c 100644
--- a/pkgs/by-name/li/libdaemon/package.nix
+++ b/pkgs/by-name/li/libdaemon/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.14";
 
   src = fetchurl {
-    url = "http://0pointer.de/lennart/projects/libdaemon/libdaemon-${finalAttrs.version}.tar.gz";
+    url = "https://0pointer.de/lennart/projects/libdaemon/libdaemon-${finalAttrs.version}.tar.gz";
     sha256 = "0d5qlq5ab95wh1xc87rqrh1vx6i8lddka1w3f1zcqvcqdxgyn8zx";
   };
 
diff --git a/pkgs/by-name/li/libdom/package.nix b/pkgs/by-name/li/libdom/package.nix
index 810d78006652..7ac4118e676e 100644
--- a/pkgs/by-name/li/libdom/package.nix
+++ b/pkgs/by-name/li/libdom/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.4.2";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libdom-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libdom-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-0F5FrxZUcBTCsKOuzzZw+hPUGfUFs/X8esihSR/DDzw=";
   };
 
diff --git a/pkgs/by-name/li/libdvbcsa/package.nix b/pkgs/by-name/li/libdvbcsa/package.nix
index abe8c1b40340..a12008bde917 100644
--- a/pkgs/by-name/li/libdvbcsa/package.nix
+++ b/pkgs/by-name/li/libdvbcsa/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.1.0";
 
   src = fetchurl {
-    url = "http://get.videolan.org/libdvbcsa/${finalAttrs.version}/libdvbcsa-${finalAttrs.version}.tar.gz";
+    url = "https://get.videolan.org/libdvbcsa/${finalAttrs.version}/libdvbcsa-${finalAttrs.version}.tar.gz";
     sha256 = "4db78af5cdb2641dfb1136fe3531960a477c9e3e3b6ba19a2754d046af3f456d";
   };
 
diff --git a/pkgs/by-name/li/libdvbpsi/package.nix b/pkgs/by-name/li/libdvbpsi/package.nix
index 14d34ac002f3..9ba79e25eb30 100644
--- a/pkgs/by-name/li/libdvbpsi/package.nix
+++ b/pkgs/by-name/li/libdvbpsi/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.3.3";
 
   src = fetchurl {
-    url = "http://get.videolan.org/libdvbpsi/${finalAttrs.version}/libdvbpsi-${finalAttrs.version}.tar.bz2";
+    url = "https://get.videolan.org/libdvbpsi/${finalAttrs.version}/libdvbpsi-${finalAttrs.version}.tar.bz2";
     sha256 = "04h1l3vrkrdsrvkgzcr51adk10g6hxcxvgjphyyxz718ry5rkd82";
   };
 
diff --git a/pkgs/by-name/li/libdvdcss/package.nix b/pkgs/by-name/li/libdvdcss/package.nix
index a481d6dfa185..2f57d64b6145 100644
--- a/pkgs/by-name/li/libdvdcss/package.nix
+++ b/pkgs/by-name/li/libdvdcss/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.4.3";
 
   src = fetchurl {
-    url = "http://get.videolan.org/libdvdcss/${finalAttrs.version}/libdvdcss-${finalAttrs.version}.tar.bz2";
+    url = "https://get.videolan.org/libdvdcss/${finalAttrs.version}/libdvdcss-${finalAttrs.version}.tar.bz2";
     sha256 = "sha256-IzzJL13AHF06lvWzWCvn1c7lo1pS06CBWHRdPYYHAHk=";
   };
 
diff --git a/pkgs/by-name/li/libdvdnav/package.nix b/pkgs/by-name/li/libdvdnav/package.nix
index 283ac0f322b5..ca7a7bbf0dfe 100644
--- a/pkgs/by-name/li/libdvdnav/package.nix
+++ b/pkgs/by-name/li/libdvdnav/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "6.1.1";
 
   src = fetchurl {
-    url = "http://get.videolan.org/libdvdnav/${finalAttrs.version}/libdvdnav-${finalAttrs.version}.tar.bz2";
+    url = "https://get.videolan.org/libdvdnav/${finalAttrs.version}/libdvdnav-${finalAttrs.version}.tar.bz2";
     sha256 = "sha256-wZGnR1lH0yP/doDPksD7G+gjdwGIXzdlbGTQTpjRjUg=";
   };
 
diff --git a/pkgs/by-name/li/libdvdread/package.nix b/pkgs/by-name/li/libdvdread/package.nix
index 4b2bd41af972..0dd1fc1f66d6 100644
--- a/pkgs/by-name/li/libdvdread/package.nix
+++ b/pkgs/by-name/li/libdvdread/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "7.0.1";
 
   src = fetchurl {
-    url = "http://get.videolan.org/libdvdread/${finalAttrs.version}/libdvdread-${finalAttrs.version}.tar.xz";
+    url = "https://get.videolan.org/libdvdread/${finalAttrs.version}/libdvdread-${finalAttrs.version}.tar.xz";
     hash = "sha256-Lj4EowXBXDljqgOuG5qDwdI5iAAD/PPd6YbTlDNV1Ac=";
   };
 
diff --git a/pkgs/by-name/li/libestr/package.nix b/pkgs/by-name/li/libestr/package.nix
index b6f29972b134..ef53dac775aa 100644
--- a/pkgs/by-name/li/libestr/package.nix
+++ b/pkgs/by-name/li/libestr/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.1.11";
 
   src = fetchurl {
-    url = "http://libestr.adiscon.com/files/download/libestr-${finalAttrs.version}.tar.gz";
+    url = "https://libestr.adiscon.com/files/download/libestr-${finalAttrs.version}.tar.gz";
     sha256 = "0910ifzcs8kpd3srrr4fvbacgh2zrc6yn7i4rwfj6jpzhlkjnqs6";
   };
 
diff --git a/pkgs/by-name/li/libguestfs-appliance/package.nix b/pkgs/by-name/li/libguestfs-appliance/package.nix
index d4f5fccf34e0..c6e6274dbd8c 100644
--- a/pkgs/by-name/li/libguestfs-appliance/package.nix
+++ b/pkgs/by-name/li/libguestfs-appliance/package.nix
@@ -9,7 +9,7 @@ stdenvNoCC.mkDerivation rec {
   version = "1.56.0";
 
   src = fetchurl {
-    url = "http://download.libguestfs.org/binaries/appliance/appliance-${version}.tar.xz";
+    url = "https://download.libguestfs.org/binaries/appliance/appliance-${version}.tar.xz";
     hash = "sha256-YbJlNaogMyutdtc7d+etyJvdd//yE8tedsZfkGXJr54=";
   };
 
diff --git a/pkgs/by-name/li/libhubbub/package.nix b/pkgs/by-name/li/libhubbub/package.nix
index 1604a5526074..f1bd24000aad 100644
--- a/pkgs/by-name/li/libhubbub/package.nix
+++ b/pkgs/by-name/li/libhubbub/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.3.8";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libhubbub-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libhubbub-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-isHm9fPUjAUUHVk5FxlTQpDFnNAp78JJ60/brBAs1aU=";
   };
 
diff --git a/pkgs/by-name/li/libjpeg_original/package.nix b/pkgs/by-name/li/libjpeg_original/package.nix
index 32f6ca87bb64..b8a2bb33efe2 100644
--- a/pkgs/by-name/li/libjpeg_original/package.nix
+++ b/pkgs/by-name/li/libjpeg_original/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "10";
 
   src = fetchurl {
-    url = "http://www.ijg.org/files/jpegsrc.v${finalAttrs.version}.tar.gz";
+    url = "https://www.ijg.org/files/jpegsrc.v${finalAttrs.version}.tar.gz";
     hash = "sha256-i56qEyQmkOvQPhcoqx7fl6gaeO1ug2JNSTZV8xrJWrU=";
   };
 
diff --git a/pkgs/by-name/li/liblogging/package.nix b/pkgs/by-name/li/liblogging/package.nix
index f181a01b955a..7eaf16f30db3 100644
--- a/pkgs/by-name/li/liblogging/package.nix
+++ b/pkgs/by-name/li/liblogging/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.0.8";
 
   src = fetchurl {
-    url = "http://download.rsyslog.com/liblogging/liblogging-${finalAttrs.version}.tar.gz";
+    url = "https://download.rsyslog.com/liblogging/liblogging-${finalAttrs.version}.tar.gz";
     hash = "sha256-ZEm3u3XcKC7GvxuYp1PJUHRupbGQ7JruCXiB5NxcS/E=";
   };
 
diff --git a/pkgs/by-name/li/liblognorm/package.nix b/pkgs/by-name/li/liblognorm/package.nix
index cd59051050d5..c6feb49595e9 100644
--- a/pkgs/by-name/li/liblognorm/package.nix
+++ b/pkgs/by-name/li/liblognorm/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.0.9";
 
   src = fetchurl {
-    url = "http://www.liblognorm.com/files/download/liblognorm-${finalAttrs.version}.tar.gz";
+    url = "https://www.liblognorm.com/files/download/liblognorm-${finalAttrs.version}.tar.gz";
     hash = "sha256-dsfMLLdqPVjncy4M/yORgPg/O2NQAriqBIZciBKFd5M=";
   };
 
diff --git a/pkgs/by-name/li/liblzf/package.nix b/pkgs/by-name/li/liblzf/package.nix
index 693488d64db4..b75d4013d2ef 100644
--- a/pkgs/by-name/li/liblzf/package.nix
+++ b/pkgs/by-name/li/liblzf/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.6";
 
   src = fetchurl {
-    url = "http://dist.schmorp.de/liblzf/liblzf-${finalAttrs.version}.tar.gz";
+    url = "https://dist.schmorp.de/liblzf/liblzf-${finalAttrs.version}.tar.gz";
     hash = "sha256-nF3gH3ucyuQMP2GdJqer7JmGwGw20mDBec7dBLiftGo=";
   };
 
diff --git a/pkgs/by-name/li/libnsbmp/package.nix b/pkgs/by-name/li/libnsbmp/package.nix
index 1a46db3b4872..4e25ccef1f05 100644
--- a/pkgs/by-name/li/libnsbmp/package.nix
+++ b/pkgs/by-name/li/libnsbmp/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.1.7";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libnsbmp-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libnsbmp-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-VAenaCoSK6qqWhW1BSkOLTffVME8Xt70sJ0SyGLYIpM=";
   };
 
diff --git a/pkgs/by-name/li/libnsfb/package.nix b/pkgs/by-name/li/libnsfb/package.nix
index 5391188efb4b..7163394718d5 100644
--- a/pkgs/by-name/li/libnsfb/package.nix
+++ b/pkgs/by-name/li/libnsfb/package.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.2.2";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libnsfb-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libnsfb-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-vkRso+tU35A/LamDEdEH11dM0R9awHE+YZFW1NGeo5o=";
   };
 
diff --git a/pkgs/by-name/li/libnsgif/package.nix b/pkgs/by-name/li/libnsgif/package.nix
index 6cb56a89db06..83697f756ec8 100644
--- a/pkgs/by-name/li/libnsgif/package.nix
+++ b/pkgs/by-name/li/libnsgif/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.0.0";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libnsgif-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libnsgif-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-YBTIQvYUVNL1oPgkPXqNe96bfaPM/cotNGx8CyxMBhs=";
   };
 
diff --git a/pkgs/by-name/li/libnslog/package.nix b/pkgs/by-name/li/libnslog/package.nix
index 4d7033da541b..3a8850f380bc 100644
--- a/pkgs/by-name/li/libnslog/package.nix
+++ b/pkgs/by-name/li/libnslog/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.1.3";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libnslog-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libnslog-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-/JjcqdfvpnCWRwpdlsAjFG4lv97AjA23RmHHtNsEU9A=";
   };
 
diff --git a/pkgs/by-name/li/libnspsl/package.nix b/pkgs/by-name/li/libnspsl/package.nix
index 7206b5358b44..31e30b283a5b 100644
--- a/pkgs/by-name/li/libnspsl/package.nix
+++ b/pkgs/by-name/li/libnspsl/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.1.7";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libnspsl-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libnspsl-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-NoTOwy9VXa7UMZk+C/bL2TdPbJCERiN+CJ8LYdaUrIA=";
   };
 
diff --git a/pkgs/by-name/li/libnsutils/package.nix b/pkgs/by-name/li/libnsutils/package.nix
index 50f774db9528..919998f82079 100644
--- a/pkgs/by-name/li/libnsutils/package.nix
+++ b/pkgs/by-name/li/libnsutils/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.1.1";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libnsutils-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libnsutils-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-VpS0Um5FjtAAQTzmAnWJy+EKJXp+zwZaAUIdxymd6pI=";
   };
 
diff --git a/pkgs/by-name/li/libogg/package.nix b/pkgs/by-name/li/libogg/package.nix
index 59ed361398c8..9bdaf320df19 100644
--- a/pkgs/by-name/li/libogg/package.nix
+++ b/pkgs/by-name/li/libogg/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.3.6";
 
   src = fetchurl {
-    url = "http://downloads.xiph.org/releases/ogg/libogg-${finalAttrs.version}.tar.xz";
+    url = "https://downloads.xiph.org/releases/ogg/libogg-${finalAttrs.version}.tar.xz";
     hash = "sha256-XIJTQo4YGEDNINQfPKFlV6nMBLrUo9BMzoSAhnf6EGE=";
   };
 
diff --git a/pkgs/by-name/li/libparserutils/package.nix b/pkgs/by-name/li/libparserutils/package.nix
index 4edb37142619..3ea276b9ffaa 100644
--- a/pkgs/by-name/li/libparserutils/package.nix
+++ b/pkgs/by-name/li/libparserutils/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.2.5";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libparserutils-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libparserutils-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-MX7VxxjxeSe1chl0uuXeMsP9bQVdsTGtMbQxKgMu0Tk=";
   };
 
diff --git a/pkgs/by-name/li/libpst/package.nix b/pkgs/by-name/li/libpst/package.nix
index c759994252b4..1778056f535e 100644
--- a/pkgs/by-name/li/libpst/package.nix
+++ b/pkgs/by-name/li/libpst/package.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.6.76";
 
   src = fetchurl {
-    url = "http://www.five-ten-sg.com/libpst/packages/libpst-${finalAttrs.version}.tar.gz";
+    url = "https://www.five-ten-sg.com/libpst/packages/libpst-${finalAttrs.version}.tar.gz";
     hash = "sha256-PSkb7rvbSNK5NGCLwGGVtkHaY9Ko9eDThvLp1tBaC0I=";
   };
 
diff --git a/pkgs/by-name/li/libptytty/package.nix b/pkgs/by-name/li/libptytty/package.nix
index 8c2308d6fa0b..098616083aac 100644
--- a/pkgs/by-name/li/libptytty/package.nix
+++ b/pkgs/by-name/li/libptytty/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.0";
 
   src = fetchurl {
-    url = "http://dist.schmorp.de/libptytty/libptytty-${finalAttrs.version}.tar.gz";
+    url = "https://dist.schmorp.de/libptytty/libptytty-${finalAttrs.version}.tar.gz";
     sha256 = "1xrikmrsdkxhdy9ggc0ci6kg5b1hn3bz44ag1mk5k1zjmlxfscw0";
   };
 
diff --git a/pkgs/by-name/li/libroxml/package.nix b/pkgs/by-name/li/libroxml/package.nix
index 510568339a04..7f29f36ad208 100644
--- a/pkgs/by-name/li/libroxml/package.nix
+++ b/pkgs/by-name/li/libroxml/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.3.0";
 
   src = fetchurl {
-    url = "http://download.libroxml.net/pool/v2.x/libroxml-${finalAttrs.version}.tar.gz";
+    url = "https://download.libroxml.net/pool/v2.x/libroxml-${finalAttrs.version}.tar.gz";
     sha256 = "0y0vc9n4rfbimjp28nx4kdfzz08j5xymh5xjy84l9fhfac5z5a0x";
   };
 
diff --git a/pkgs/by-name/li/libsvgtiny/package.nix b/pkgs/by-name/li/libsvgtiny/package.nix
index ae64b32be848..04e84d0300a7 100644
--- a/pkgs/by-name/li/libsvgtiny/package.nix
+++ b/pkgs/by-name/li/libsvgtiny/package.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.1.8";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libsvgtiny-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libsvgtiny-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-w1cifwLoP7KnaxK5ARkaCCIp2x8Ac2Lo8xx1RRDCoBw=";
   };
 
diff --git a/pkgs/by-name/li/libtermkey/package.nix b/pkgs/by-name/li/libtermkey/package.nix
index 6d3b35b056f1..56153eabb66a 100644
--- a/pkgs/by-name/li/libtermkey/package.nix
+++ b/pkgs/by-name/li/libtermkey/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.22";
 
   src = fetchzip {
-    url = "http://www.leonerd.org.uk/code/libtermkey/libtermkey-${finalAttrs.version}.tar.gz";
+    url = "https://www.leonerd.org.uk/code/libtermkey/libtermkey-${finalAttrs.version}.tar.gz";
     sha256 = "02dks6bj7n23lj005yq41azf95wh3hapmgc2lzyh12vigkjh67rg";
   };
 
diff --git a/pkgs/by-name/li/libtirpc/package.nix b/pkgs/by-name/li/libtirpc/package.nix
index 11acc1076428..560039ab7229 100644
--- a/pkgs/by-name/li/libtirpc/package.nix
+++ b/pkgs/by-name/li/libtirpc/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.3.7";
 
   src = fetchurl {
-    url = "http://git.linux-nfs.org/?p=steved/libtirpc.git;a=snapshot;h=refs/tags/libtirpc-${
+    url = "https://git.linux-nfs.org/?p=steved/libtirpc.git;a=snapshot;h=refs/tags/libtirpc-${
       lib.replaceStrings [ "." ] [ "-" ] finalAttrs.version
     };sf=tgz";
     hash = "sha256-VGftEr3xzCp8O3oqCjIZozlq599gxN5IsHBRaG37GP4=";
diff --git a/pkgs/by-name/li/libutempter/package.nix b/pkgs/by-name/li/libutempter/package.nix
index 151728e2f442..ad5f97928c71 100644
--- a/pkgs/by-name/li/libutempter/package.nix
+++ b/pkgs/by-name/li/libutempter/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.2.1";
 
   src = fetchurl {
-    url = "http://ftp.altlinux.org/pub/people/ldv/utempter/libutempter-${finalAttrs.version}.tar.gz";
+    url = "https://ftp.altlinux.org/pub/people/ldv/utempter/libutempter-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-ln/vNy85HeUBhDrYdXDGz12r2WUfAPF4MJD7wSsqNMs=";
   };
 
diff --git a/pkgs/by-name/li/libutf8proc/package.nix b/pkgs/by-name/li/libutf8proc/package.nix
index fec396e5af27..d818f1259435 100644
--- a/pkgs/by-name/li/libutf8proc/package.nix
+++ b/pkgs/by-name/li/libutf8proc/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.4.0-1";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libutf8proc-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libutf8proc-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-AasdaYnBx3VQkNskw/ZOSflcVgrknCa+xRQrrGgCxHI=";
   };
 
diff --git a/pkgs/by-name/li/libwapcaplet/package.nix b/pkgs/by-name/li/libwapcaplet/package.nix
index cb123b725b72..583db36daf59 100644
--- a/pkgs/by-name/li/libwapcaplet/package.nix
+++ b/pkgs/by-name/li/libwapcaplet/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.4.3";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/libwapcaplet-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/libwapcaplet-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-myqh3W1mRfjpkrNpf9vYfwwOHaVyH6VO0ptITRMWDFw=";
   };
 
diff --git a/pkgs/by-name/li/libzmf/package.nix b/pkgs/by-name/li/libzmf/package.nix
index 1059d549ed78..aa2838f18eee 100644
--- a/pkgs/by-name/li/libzmf/package.nix
+++ b/pkgs/by-name/li/libzmf/package.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.0.2";
 
   src = fetchurl {
-    url = "http://dev-www.libreoffice.org/src/libzmf/libzmf-${finalAttrs.version}.tar.xz";
+    url = "https://dev-www.libreoffice.org/src/libzmf/libzmf-${finalAttrs.version}.tar.xz";
     sha256 = "08mg5kmkjrmqrd8j5rkzw9vdqlvibhb1ynp6bmfxnzq5rcq1l197";
   };
 
diff --git a/pkgs/by-name/li/lilypond/package.nix b/pkgs/by-name/li/lilypond/package.nix
index 60e7f2deb45c..e9e2aeb9cb15 100644
--- a/pkgs/by-name/li/lilypond/package.nix
+++ b/pkgs/by-name/li/lilypond/package.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   src = fetchzip {
-    url = "http://lilypond.org/download/sources/v${lib.versions.majorMinor finalAttrs.version}/lilypond-${finalAttrs.version}.tar.gz";
+    url = "https://lilypond.org/download/sources/v${lib.versions.majorMinor finalAttrs.version}/lilypond-${finalAttrs.version}.tar.gz";
     hash = "sha256-UYdORvodrVchxslOxpMiXrAh7DtB9sWp9yqZU/jeB9Y=";
   };
 
diff --git a/pkgs/by-name/li/links2/package.nix b/pkgs/by-name/li/links2/package.nix
index dae295f20689..d63aab7bc04b 100644
--- a/pkgs/by-name/li/links2/package.nix
+++ b/pkgs/by-name/li/links2/package.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "links2";
 
   src = fetchurl {
-    url = "http://links.twibright.com/download/links-${finalAttrs.version}.tar.bz2";
+    url = "https://links.twibright.com/download/links-${finalAttrs.version}.tar.bz2";
     hash = "sha256-xGMca1oRUnzcPLeHL8I7fyslwrAh1Za+QQ2ttAMV8WY=";
   };
 
diff --git a/pkgs/by-name/li/linux-libertine-g/package.nix b/pkgs/by-name/li/linux-libertine-g/package.nix
index b8f2cb13a868..8dd8252d10ae 100644
--- a/pkgs/by-name/li/linux-libertine-g/package.nix
+++ b/pkgs/by-name/li/linux-libertine-g/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "20120116";
 
   src = fetchzip {
-    url = "http://www.numbertext.org/linux/e7a384790b13c29113e22e596ade9687-LinLibertineG-${finalAttrs.version}.zip";
+    url = "https://www.numbertext.org/linux/e7a384790b13c29113e22e596ade9687-LinLibertineG-${finalAttrs.version}.zip";
     hash = "sha256-UGTB7jsI6peivCtEt96RCSi5XHCrnjCSs0Ud5bF7uxk=";
   };
 
diff --git a/pkgs/by-name/li/liquidwar5/package.nix b/pkgs/by-name/li/liquidwar5/package.nix
index 48bab4249b39..470fdaa4ffb9 100644
--- a/pkgs/by-name/li/liquidwar5/package.nix
+++ b/pkgs/by-name/li/liquidwar5/package.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "5.6.6";
   pname = "liquidwar5";
   src = fetchurl {
-    url = "http://www.ufoot.org/download/liquidwar/v5/${finalAttrs.version}/liquidwar-${finalAttrs.version}.tar.gz";
+    url = "https://www.ufoot.org/download/liquidwar/v5/${finalAttrs.version}/liquidwar-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-JF2AZuzDiCm9EQ8AiQ6230TgmMgML7yJpG80BFqsQ/c=";
   };
 
diff --git a/pkgs/by-name/lk/lkproof/package.nix b/pkgs/by-name/lk/lkproof/package.nix
index 63be05c57638..4037f73ebfff 100644
--- a/pkgs/by-name/lk/lkproof/package.nix
+++ b/pkgs/by-name/lk/lkproof/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation {
   version = "3.1";
 
   src = fetchurl {
-    url = "http://mirror.ctan.org/macros/latex/contrib/lkproof.zip";
+    url = "https://mirror.ctan.org/macros/latex/contrib/lkproof.zip";
     sha256 = "1qjkjhpc4rm62qxn18r83zdlwnj1wvnkcpdiqlv7w4bakh0gvjly";
   };
 
diff --git a/pkgs/by-name/lr/lrs/package.nix b/pkgs/by-name/lr/lrs/package.nix
index 94791a31e6a3..dc3efda1023d 100644
--- a/pkgs/by-name/lr/lrs/package.nix
+++ b/pkgs/by-name/lr/lrs/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation {
   version = "7.3";
 
   src = fetchurl {
-    url = "http://cgm.cs.mcgill.ca/~avis/C/lrslib/archive/lrslib-073.tar.gz";
+    url = "https://cgm.cs.mcgill.ca/~avis/C/lrslib/archive/lrslib-073.tar.gz";
     sha256 = "sha256-xJpOvYVhg0c9HVpieF/N/hBX1dZx1LlvOhJQ6xr+ToM=";
   };
 
diff --git a/pkgs/by-name/ls/lsscsi/package.nix b/pkgs/by-name/ls/lsscsi/package.nix
index 22bd5c90be74..127499c32af5 100644
--- a/pkgs/by-name/ls/lsscsi/package.nix
+++ b/pkgs/by-name/ls/lsscsi/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.32";
 
   src = fetchurl {
-    url = "http://sg.danny.cz/scsi/lsscsi-${finalAttrs.version}.tgz";
+    url = "https://sg.danny.cz/scsi/lsscsi-${finalAttrs.version}.tgz";
     sha256 = "sha256-CoAOnpTcoqtwLWXXJ3eujK4Hjj100Ly+1kughJ6AKaE=";
   };
 
diff --git a/pkgs/by-name/lv/lv2-cpp-tools/package.nix b/pkgs/by-name/lv/lv2-cpp-tools/package.nix
index d191a72cf518..7ce53649e37d 100644
--- a/pkgs/by-name/lv/lv2-cpp-tools/package.nix
+++ b/pkgs/by-name/lv/lv2-cpp-tools/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.0.5";
 
   src = fetchzip {
-    url = "http://deb.debian.org/debian/pool/main/l/lv2-c++-tools/lv2-c++-tools_${finalAttrs.version}.orig.tar.bz2";
+    url = "https://deb.debian.org/debian/pool/main/l/lv2-c++-tools/lv2-c++-tools_${finalAttrs.version}.orig.tar.bz2";
     sha256 = "039bq7d7s2bhfcnlsfq0mqxr9a9iqwg5bwcpxfi24c6yl6krydsi";
   };
 
diff --git a/pkgs/by-name/lw/lwm/package.nix b/pkgs/by-name/lw/lwm/package.nix
index 1cea7484f76e..7f90b0b24959 100644
--- a/pkgs/by-name/lw/lwm/package.nix
+++ b/pkgs/by-name/lw/lwm/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.2.4";
 
   src = fetchurl {
-    url = "http://www.jfc.org.uk/files/lwm/lwm-${finalAttrs.version}.tar.gz";
+    url = "https://www.jfc.org.uk/files/lwm/lwm-${finalAttrs.version}.tar.gz";
     sha256 = "1bcdr173f0gl61fyl43p3gr145angci7lvjqb8rl00y9f9amvh3y";
   };
 
diff --git a/pkgs/by-name/ma/macopix/package.nix b/pkgs/by-name/ma/macopix/package.nix
index c58355fd2299..66a06004ae5f 100644
--- a/pkgs/by-name/ma/macopix/package.nix
+++ b/pkgs/by-name/ma/macopix/package.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation (finalAttrs: {
   # GitHub does not contain tags
   # https://github.com/chimari/MaCoPiX/issues/6
   src = fetchurl {
-    url = "http://rosegray.sakura.ne.jp/macopix/macopix-${finalAttrs.version}.tar.gz";
+    url = "https://rosegray.sakura.ne.jp/macopix/macopix-${finalAttrs.version}.tar.gz";
     hash = "sha256-1AjqdPPCc9UQWqLdWlA+Va+MmvKL8dAIfJURPifN7RI=";
   };
 
diff --git a/pkgs/by-name/ma/maelstrom/package.nix b/pkgs/by-name/ma/maelstrom/package.nix
index 339242a44c00..3a58566d423a 100644
--- a/pkgs/by-name/ma/maelstrom/package.nix
+++ b/pkgs/by-name/ma/maelstrom/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.0.7";
 
   src = fetchurl {
-    url = "http://www.libsdl.org/projects/Maelstrom/src/Maelstrom-${finalAttrs.version}.tar.gz";
+    url = "https://www.libsdl.org/projects/Maelstrom/src/Maelstrom-${finalAttrs.version}.tar.gz";
     sha256 = "0dm0m5wd7amrsa8wnrblkv34sq4v4lglc2wfx8klfkdhyhi06s4k";
   };
 
diff --git a/pkgs/by-name/ma/marvin/package.nix b/pkgs/by-name/ma/marvin/package.nix
index a79d348ff80d..3fbb912285f1 100644
--- a/pkgs/by-name/ma/marvin/package.nix
+++ b/pkgs/by-name/ma/marvin/package.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   src = fetchurl {
     name = "marvin-${finalAttrs.version}.deb";
-    url = "http://dl.chemaxon.com/marvin/${finalAttrs.version}/marvin_linux_${finalAttrs.version}.deb";
+    url = "https://dl.chemaxon.com/marvin/${finalAttrs.version}/marvin_linux_${finalAttrs.version}.deb";
     hash = "sha256-+fTO6cEJL4QRFpLQ9CXZFt7Jg3otR3ZMWN5vH+3QXmA=";
   };
 
diff --git a/pkgs/by-name/mb/mbuffer/package.nix b/pkgs/by-name/mb/mbuffer/package.nix
index 274fb3d667e1..fb5cd95a5efa 100644
--- a/pkgs/by-name/mb/mbuffer/package.nix
+++ b/pkgs/by-name/mb/mbuffer/package.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   src = fetchurl {
-    url = "http://www.maier-komor.de/software/mbuffer/mbuffer-${finalAttrs.version}.tgz";
+    url = "https://www.maier-komor.de/software/mbuffer/mbuffer-${finalAttrs.version}.tgz";
     sha256 = "sha256-R+UWtBFgOZlnN8T4iV9m563iS37sXpN1SGY3psirNgE=";
   };
 
diff --git a/pkgs/by-name/me/memtester/package.nix b/pkgs/by-name/me/memtester/package.nix
index d0929ec5583a..423967fef4d7 100644
--- a/pkgs/by-name/me/memtester/package.nix
+++ b/pkgs/by-name/me/memtester/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   '';
 
   src = fetchurl {
-    url = "http://pyropus.ca/software/memtester/old-versions/memtester-${finalAttrs.version}.tar.gz";
+    url = "https://pyropus.ca/software/memtester/old-versions/memtester-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-5CfeZj970i0evuivElBqhSwBC9T8vKHg5rApctKYtbs=";
   };
 
diff --git a/pkgs/by-name/me/mencal/package.nix b/pkgs/by-name/me/mencal/package.nix
index 797297ae09b0..c9af8c16b3eb 100644
--- a/pkgs/by-name/me/mencal/package.nix
+++ b/pkgs/by-name/me/mencal/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.0";
 
   src = fetchurl {
-    url = "http://kyberdigi.cz/projects/mencal/files/mencal-${finalAttrs.version}.tar.gz";
+    url = "https://kyberdigi.cz/projects/mencal/files/mencal-${finalAttrs.version}.tar.gz";
     sha256 = "9328d0b2f3f57847e8753c5184531f4832be7123d1b6623afdff892074c03080";
   };
 
diff --git a/pkgs/by-name/mi/mimetic/package.nix b/pkgs/by-name/mi/mimetic/package.nix
index 6f59d01a52bb..128010249ce3 100644
--- a/pkgs/by-name/mi/mimetic/package.nix
+++ b/pkgs/by-name/mi/mimetic/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.9.8";
 
   src = fetchurl {
-    url = "http://www.codesink.org/download/mimetic-${finalAttrs.version}.tar.gz";
+    url = "https://www.codesink.org/download/mimetic-${finalAttrs.version}.tar.gz";
     sha256 = "003715lvj4nx23arn1s9ss6hgc2yblkwfy5h94li6pjz2a6xc1rs";
   };
 
diff --git a/pkgs/by-name/mo/molotov/package.nix b/pkgs/by-name/mo/molotov/package.nix
index cf14bfbd536d..c7c018ec04db 100644
--- a/pkgs/by-name/mo/molotov/package.nix
+++ b/pkgs/by-name/mo/molotov/package.nix
@@ -8,7 +8,7 @@ let
   pname = "molotov";
   version = "4.4.0";
   src = fetchurl {
-    url = "http://desktop-auto-upgrade.molotov.tv/linux/${version}/molotov.AppImage";
+    url = "https://desktop-auto-upgrade.molotov.tv/linux/${version}/molotov.AppImage";
     sha256 = "sha256-l4Il6i8uXSeJqH3ITC8ZUpKXPQb0qcW7SpKx1R46XDc=";
   };
   appimageContents = appimageTools.extractType2 { inherit pname version src; };
diff --git a/pkgs/by-name/mo/moon-buggy/package.nix b/pkgs/by-name/mo/moon-buggy/package.nix
index bfe5c9fbfda6..714c969afb73 100644
--- a/pkgs/by-name/mo/moon-buggy/package.nix
+++ b/pkgs/by-name/mo/moon-buggy/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   src = fetchurl {
-    url = "http://www.seehuhn.de/programs/moon-buggy/moon-buggy-${finalAttrs.version}.tar.gz";
+    url = "https://www.seehuhn.de/programs/moon-buggy/moon-buggy-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-JZrm57GDjEBTKvXA8gzXxhc81cVS7eQIEUBkR1vPxbY=";
   };
 
diff --git a/pkgs/by-name/ms/mscgen/package.nix b/pkgs/by-name/ms/mscgen/package.nix
index d5f58b968ecd..b341ea5b826f 100644
--- a/pkgs/by-name/ms/mscgen/package.nix
+++ b/pkgs/by-name/ms/mscgen/package.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.20";
 
   src = fetchurl {
-    url = "http://www.mcternan.me.uk/mscgen/software/mscgen-src-${finalAttrs.version}.tar.gz";
+    url = "https://www.mcternan.me.uk/mscgen/software/mscgen-src-${finalAttrs.version}.tar.gz";
     sha256 = "3c3481ae0599e1c2d30b7ed54ab45249127533ab2f20e768a0ae58d8551ddc23";
   };
 
diff --git a/pkgs/by-name/ms/msr/package.nix b/pkgs/by-name/ms/msr/package.nix
index d03bda0f3798..766f355df9d4 100644
--- a/pkgs/by-name/ms/msr/package.nix
+++ b/pkgs/by-name/ms/msr/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
 
   src = fetchzip {
     inherit pname version;
-    url = "http://www.etallen.com/msr/msr-${version}.src.tar.gz";
+    url = "https://www.etallen.com/msr/msr-${version}.src.tar.gz";
     hash = "sha256-e01qYWbOALkXp5NpexuVodMxA3EBySejJ6ZBpZjyT+E=";
   };
 
diff --git a/pkgs/by-name/my/mystem/package.nix b/pkgs/by-name/my/mystem/package.nix
index b7fa3f708609..c322b446d5ef 100644
--- a/pkgs/by-name/my/mystem/package.nix
+++ b/pkgs/by-name/my/mystem/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   version = "3.1";
 
   src = fetchurl {
-    url = "http://download.cdn.yandex.net/mystem/${pname}-${version}-linux-64bit.tar.gz";
+    url = "https://download.cdn.yandex.net/mystem/${pname}-${version}-linux-64bit.tar.gz";
     sha256 = "0qha7jvkdmil3jiwrpsfhkqsbkqn9dzgx3ayxwjdmv73ikmg95j6";
   };
 
diff --git a/pkgs/by-name/n2/n2048/package.nix b/pkgs/by-name/n2/n2048/package.nix
index e28b685d9f52..ce214db7acfe 100644
--- a/pkgs/by-name/n2/n2048/package.nix
+++ b/pkgs/by-name/n2/n2048/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.1";
 
   src = fetchurl {
-    url = "http://www.dettus.net/n2048/n2048_v${finalAttrs.version}.tar.gz";
+    url = "https://www.dettus.net/n2048/n2048_v${finalAttrs.version}.tar.gz";
     hash = "sha256-c4bHWmdQuwyRXIm/sqw3p71pMv6VLAzIuUTaDHIWn6A=";
   };
 
diff --git a/pkgs/by-name/nb/nbench/package.nix b/pkgs/by-name/nb/nbench/package.nix
index 065315d93659..1d7c5d9b5049 100644
--- a/pkgs/by-name/nb/nbench/package.nix
+++ b/pkgs/by-name/nb/nbench/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.2.3";
 
   src = fetchurl {
-    url = "http://www.math.utah.edu/~mayer/linux/nbench-byte-${finalAttrs.version}.tar.gz";
+    url = "https://www.math.utah.edu/~mayer/linux/nbench-byte-${finalAttrs.version}.tar.gz";
     sha256 = "1b01j7nmm3wd92ngvsmn2sbw43sl9fpx4xxmkrink68fz1rx0gbj";
   };
 
diff --git a/pkgs/by-name/ne/netsurf-browser/package.nix b/pkgs/by-name/ne/netsurf-browser/package.nix
index 3b1c8b8932a0..0ee843fbd1a0 100644
--- a/pkgs/by-name/ne/netsurf-browser/package.nix
+++ b/pkgs/by-name/ne/netsurf-browser/package.nix
@@ -56,7 +56,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.11";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/netsurf/releases/source/netsurf-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/netsurf/releases/source/netsurf-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-wopiau/uQo0FOxP4i1xECSIkWXZSLRLq8TfP0y0gHLI=";
   };
 
diff --git a/pkgs/by-name/ne/netsurf-buildsystem/package.nix b/pkgs/by-name/ne/netsurf-buildsystem/package.nix
index aae1857ba079..2b83f23cea30 100644
--- a/pkgs/by-name/ne/netsurf-buildsystem/package.nix
+++ b/pkgs/by-name/ne/netsurf-buildsystem/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.10";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/buildsystem-${finalAttrs.version}.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/buildsystem-${finalAttrs.version}.tar.gz";
     hash = "sha256-PT451WnkRnfEsXkSm95hTGV5jis+YlMWAjnR/W6uTXk=";
   };
 
diff --git a/pkgs/by-name/nl/nload/package.nix b/pkgs/by-name/nl/nload/package.nix
index eb4a294e8b19..173961965938 100644
--- a/pkgs/by-name/nl/nload/package.nix
+++ b/pkgs/by-name/nl/nload/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "nload";
 
   src = fetchurl {
-    url = "http://www.roland-riegel.de/nload/nload-${finalAttrs.version}.tar.gz";
+    url = "https://www.roland-riegel.de/nload/nload-${finalAttrs.version}.tar.gz";
     sha256 = "1rb9skch2kgqzigf19x8bzk211jdfjfdkrcvaqyj89jy2pkm3h61";
   };
 
diff --git a/pkgs/by-name/ns/nsf-ordlista/package.nix b/pkgs/by-name/ns/nsf-ordlista/package.nix
index 3f75a924544b..3f9cf7822cce 100644
--- a/pkgs/by-name/ns/nsf-ordlista/package.nix
+++ b/pkgs/by-name/ns/nsf-ordlista/package.nix
@@ -7,7 +7,7 @@ stdenvNoCC.mkDerivation {
   pname = "nsf-ordlista";
   version = "unstable-2023-08-20";
   src = fetchzip {
-    url = "http://www2.scrabbleforbundet.no/wp-content/uploads/2023/08/nsf2023.zip";
+    url = "https://www2.scrabbleforbundet.no/wp-content/uploads/2023/08/nsf2023.zip";
     hash = "sha256-bcVqZ2yPHurl6sRNgeLNAyyR8WR9ewmtn85Xuw/rZ3s=";
   };
 
diff --git a/pkgs/by-name/ns/nsgenbind/package.nix b/pkgs/by-name/ns/nsgenbind/package.nix
index fd56a343ac63..b549aab3cbb6 100644
--- a/pkgs/by-name/ns/nsgenbind/package.nix
+++ b/pkgs/by-name/ns/nsgenbind/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.9";
 
   src = fetchurl {
-    url = "http://download.netsurf-browser.org/libs/releases/nsgenbind-${finalAttrs.version}-src.tar.gz";
+    url = "https://download.netsurf-browser.org/libs/releases/nsgenbind-${finalAttrs.version}-src.tar.gz";
     hash = "sha256-Iyzg9my8LD7tYoiuJt4sVnu/u8Adiw9vxsHBZJ1LOF0=";
   };
 
diff --git a/pkgs/by-name/nt/ntl/package.nix b/pkgs/by-name/nt/ntl/package.nix
index 3e03275cd02e..1d55a25fbb9c 100644
--- a/pkgs/by-name/nt/ntl/package.nix
+++ b/pkgs/by-name/nt/ntl/package.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "11.6.0";
 
   src = fetchurl {
-    url = "http://www.shoup.net/ntl/ntl-${finalAttrs.version}.tar.gz";
+    url = "https://www.shoup.net/ntl/ntl-${finalAttrs.version}.tar.gz";
     hash = "sha256-vA75rOsHWmoGc6yNj0fV+EWMcv6AbkRo+9XT2v8FYYI=";
   };
 
diff --git a/pkgs/by-name/nu/nuttcp/package.nix b/pkgs/by-name/nu/nuttcp/package.nix
index dd359bd25a07..ea7457e581f0 100644
--- a/pkgs/by-name/nu/nuttcp/package.nix
+++ b/pkgs/by-name/nu/nuttcp/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "8.2.2";
 
   src = fetchurl {
-    url = "http://nuttcp.net/nuttcp/nuttcp-${finalAttrs.version}.tar.bz2";
+    url = "https://nuttcp.net/nuttcp/nuttcp-${finalAttrs.version}.tar.bz2";
     sha256 = "sha256-fq16ieeqoFnSDjQELFihmMKYHK1ylVDROI3fyQNtOYM=";
   };
 
diff --git a/pkgs/by-name/op/openbox/package.nix b/pkgs/by-name/op/openbox/package.nix
index 933ce0f08451..53d55665ae0f 100644
--- a/pkgs/by-name/op/openbox/package.nix
+++ b/pkgs/by-name/op/openbox/package.nix
@@ -52,12 +52,12 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   src = fetchurl {
-    url = "http://openbox.org/dist/openbox/openbox-${finalAttrs.version}.tar.gz";
+    url = "https://openbox.org/dist/openbox/openbox-${finalAttrs.version}.tar.gz";
     sha256 = "1xvyvqxlhy08n61rjkckmrzah2si1i7nmc7s8h07riqq01vc0jlb";
   };
 
   setlayoutSrc = fetchurl {
-    url = "http://openbox.org/dist/tools/setlayout.c";
+    url = "https://openbox.org/dist/tools/setlayout.c";
     sha256 = "1ci9lq4qqhl31yz1jwwjiawah0f7x0vx44ap8baw7r6rdi00pyiv";
   };
 
diff --git a/pkgs/by-name/op/opencsg/package.nix b/pkgs/by-name/op/opencsg/package.nix
index e4eda4c6604c..92c93f11d440 100644
--- a/pkgs/by-name/op/opencsg/package.nix
+++ b/pkgs/by-name/op/opencsg/package.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.8.2";
 
   src = fetchurl {
-    url = "http://www.opencsg.org/OpenCSG-${finalAttrs.version}.tar.gz";
+    url = "https://www.opencsg.org/OpenCSG-${finalAttrs.version}.tar.gz";
     hash = "sha256-WsXfc7GtM0DdZwX/kOAJ8alGu5U2whwiY6b5dCZWZMA=";
   };
 
diff --git a/pkgs/by-name/op/optar/package.nix b/pkgs/by-name/op/optar/package.nix
index dd38b7a4895c..be57552c56d0 100644
--- a/pkgs/by-name/op/optar/package.nix
+++ b/pkgs/by-name/op/optar/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "20150210";
 
   src = fetchurl {
-    url = "http://ronja.twibright.com/optar.tgz";
+    url = "https://ronja.twibright.com/optar.tgz";
     sha256 = "10lr31k3xfcpa6vxkbl3abph7j3gks2210489khnnzmhmfdnm1a4";
   };
 
diff --git a/pkgs/by-name/op/opusfile/package.nix b/pkgs/by-name/op/opusfile/package.nix
index 921afa98afd1..c6f78c1a4ffd 100644
--- a/pkgs/by-name/op/opusfile/package.nix
+++ b/pkgs/by-name/op/opusfile/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "opusfile";
   version = "0.12";
   src = fetchurl {
-    url = "http://downloads.xiph.org/releases/opus/opusfile-${finalAttrs.version}.tar.gz";
+    url = "https://downloads.xiph.org/releases/opus/opusfile-${finalAttrs.version}.tar.gz";
     sha256 = "02smwc5ah8nb3a67mnkjzqmrzk43j356hgj2a97s9midq40qd38i";
   };
 
diff --git a/pkgs/by-name/ot/otf2/package.nix b/pkgs/by-name/ot/otf2/package.nix
index fafe2b6919d5..432647edf929 100644
--- a/pkgs/by-name/ot/otf2/package.nix
+++ b/pkgs/by-name/ot/otf2/package.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   src = fetchurl {
-    url = "http://perftools.pages.jsc.fz-juelich.de/cicd/otf2/tags/otf2-${finalAttrs.version}/otf2-${finalAttrs.version}.tar.gz";
+    url = "https://perftools.pages.jsc.fz-juelich.de/cicd/otf2/tags/otf2-${finalAttrs.version}/otf2-${finalAttrs.version}.tar.gz";
     hash = "sha256-Wk4BOlGsTteU/jXFW3AM1yA0b9p/M+yEx2uGpfuICm4=";
   };
 
diff --git a/pkgs/by-name/p0/p0f/package.nix b/pkgs/by-name/p0/p0f/package.nix
index 19f05ba90377..1fadb2ccc935 100644
--- a/pkgs/by-name/p0/p0f/package.nix
+++ b/pkgs/by-name/p0/p0f/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.09b";
 
   src = fetchurl {
-    url = "http://lcamtuf.coredump.cx/p0f3/releases/p0f-${finalAttrs.version}.tgz";
+    url = "https://lcamtuf.coredump.cx/p0f3/releases/p0f-${finalAttrs.version}.tgz";
     sha256 = "0zqfq3gdnha29ckvlqmyp36c0jhj7f69bhqqx31yb6vkirinhfsl";
   };
 
diff --git a/pkgs/by-name/pa/palp/package.nix b/pkgs/by-name/pa/palp/package.nix
index c3e4db9a54a2..5a7a4b2e4036 100644
--- a/pkgs/by-name/pa/palp/package.nix
+++ b/pkgs/by-name/pa/palp/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.21";
 
   src = fetchurl {
-    url = "http://hep.itp.tuwien.ac.at/~kreuzer/CY/palp/palp-${finalAttrs.version}.tar.gz";
+    url = "https://hep.itp.tuwien.ac.at/~kreuzer/CY/palp/palp-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-fkp78hmZioRMC8zgoXbknQdDy0tQWg4ZUym/LsGW3dc=";
   };
 
diff --git a/pkgs/by-name/pa/pam_tmpdir/package.nix b/pkgs/by-name/pa/pam_tmpdir/package.nix
index 724b32566279..cb44ea6109bc 100644
--- a/pkgs/by-name/pa/pam_tmpdir/package.nix
+++ b/pkgs/by-name/pa/pam_tmpdir/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.09";
 
   src = fetchurl {
-    url = "http://deb.debian.org/debian/pool/main/p/pam-tmpdir/pam-tmpdir_${finalAttrs.version}.tar.gz";
+    url = "https://deb.debian.org/debian/pool/main/p/pam-tmpdir/pam-tmpdir_${finalAttrs.version}.tar.gz";
     hash = "sha256-MXa1CY6alD83E/Q+MJmsv8NaImWd0pPJKZd/7nbe4J8=";
   };
 
diff --git a/pkgs/by-name/pa/papi/package.nix b/pkgs/by-name/pa/papi/package.nix
index b0105c0d0eb5..96c0ee99f1ab 100644
--- a/pkgs/by-name/pa/papi/package.nix
+++ b/pkgs/by-name/pa/papi/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "papi";
 
   src = fetchurl {
-    url = "http://icl.utk.edu/projects/papi/downloads/papi-${finalAttrs.version}.tar.gz";
+    url = "https://icl.utk.edu/projects/papi/downloads/papi-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-qb/4nM85kV1yngiuCgxqcc4Ou+mEEemi6zyDyNsK85w=";
   };
 
diff --git a/pkgs/by-name/pa/pari-galdata/package.nix b/pkgs/by-name/pa/pari-galdata/package.nix
index 6a9cb735e828..62839f3acf6c 100644
--- a/pkgs/by-name/pa/pari-galdata/package.nix
+++ b/pkgs/by-name/pa/pari-galdata/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation {
   pname = "pari-galdata";
 
   src = fetchurl {
-    url = "http://pari.math.u-bordeaux.fr/pub/pari/packages/galdata.tgz";
+    url = "https://pari.math.u-bordeaux.fr/pub/pari/packages/galdata.tgz";
     sha256 = "1pch6bk76f1i6cwwgm7hhxi5h71m52lqayp4mnyj0jmjk406bhdp";
   };
 
diff --git a/pkgs/by-name/pa/pari-seadata-small/package.nix b/pkgs/by-name/pa/pari-seadata-small/package.nix
index 6e5203997326..8166d847af7d 100644
--- a/pkgs/by-name/pa/pari-seadata-small/package.nix
+++ b/pkgs/by-name/pa/pari-seadata-small/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation {
   pname = "pari-seadata-small";
 
   src = fetchurl {
-    url = "http://pari.math.u-bordeaux.fr/pub/pari/packages/seadata-small.tgz";
+    url = "https://pari.math.u-bordeaux.fr/pub/pari/packages/seadata-small.tgz";
     sha256 = "13qafribxwkz8h3haa0cng7arz0kh7398br4y7vqs9ib8w9yjnxz";
   };
 
diff --git a/pkgs/by-name/pa/paup-cli/package.nix b/pkgs/by-name/pa/paup-cli/package.nix
index 006a65b7fb95..ec4d5488e13f 100644
--- a/pkgs/by-name/pa/paup-cli/package.nix
+++ b/pkgs/by-name/pa/paup-cli/package.nix
@@ -13,7 +13,7 @@ stdenvNoCC.mkDerivation {
   version = "4.0a168";
 
   src = fetchurl {
-    url = "http://phylosolutions.com/paup-test/paup4a168_centos64.gz";
+    url = "https://phylosolutions.com/paup-test/paup4a168_centos64.gz";
     hash = "sha256-41dZswlrIQ05f1zJzId78DKmPf0QH1SfrexzvCAUxq8=";
   };
 
diff --git a/pkgs/by-name/pc/pcg_c/package.nix b/pkgs/by-name/pc/pcg_c/package.nix
index 6b034c602c7d..f2c2c3f5b9db 100644
--- a/pkgs/by-name/pc/pcg_c/package.nix
+++ b/pkgs/by-name/pc/pcg_c/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "pcg-c";
 
   src = fetchzip {
-    url = "http://www.pcg-random.org/downloads/pcg-c-${finalAttrs.version}.zip";
+    url = "https://www.pcg-random.org/downloads/pcg-c-${finalAttrs.version}.zip";
     sha256 = "0smm811xbvs03a5nc2668zd0178wnyri2h023pqffy767bpy1vlv";
   };
 
diff --git a/pkgs/by-name/pc/pcsc-scm-scl011/package.nix b/pkgs/by-name/pc/pcsc-scm-scl011/package.nix
index aedf6ddf3680..5e403b514685 100644
--- a/pkgs/by-name/pc/pcsc-scm-scl011/package.nix
+++ b/pkgs/by-name/pc/pcsc-scm-scl011/package.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   version = "2.09";
 
   src = fetchurl {
-    url = "http://files.identiv.com/products/smart-card-readers/contactless/scl010-011/Linux_Driver_Ver${version}.zip";
+    url = "https://files.identiv.com/products/smart-card-readers/contactless/scl010-011/Linux_Driver_Ver${version}.zip";
     sha256 = "0ik26sxgqgsqplksl87z61vwmx51k7plaqmrkdid7xidgfhfxr42";
   };
 
diff --git a/pkgs/by-name/pe/pecita/package.nix b/pkgs/by-name/pe/pecita/package.nix
index d869f8eef266..314f0b6c0740 100644
--- a/pkgs/by-name/pe/pecita/package.nix
+++ b/pkgs/by-name/pe/pecita/package.nix
@@ -9,7 +9,7 @@ stdenvNoCC.mkDerivation {
   version = "5.4";
 
   src = fetchurl {
-    url = "http://pecita.eu/b/Pecita.otf";
+    url = "https://pecita.eu/b/Pecita.otf";
     hash = "sha256-D9IZ+p4UFHUNt9me7D4vv0x6rMK9IaViKPliCEyX6t4=";
   };
 
diff --git a/pkgs/by-name/pe/pencil/package.nix b/pkgs/by-name/pe/pencil/package.nix
index 2df669f31b90..917bbaa7a9ed 100644
--- a/pkgs/by-name/pe/pencil/package.nix
+++ b/pkgs/by-name/pe/pencil/package.nix
@@ -80,7 +80,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "pencil";
 
   src = fetchurl {
-    url = "http://pencil.evolus.vn/dl/V${finalAttrs.version}.ga/pencil_${finalAttrs.version}.ga_amd64.deb";
+    url = "https://pencil.evolus.vn/dl/V${finalAttrs.version}.ga/pencil_${finalAttrs.version}.ga_amd64.deb";
     sha256 = "01ae54b1a1351b909eb2366c6ec00816e1deba370e58f35601cf7368f10aaba3";
   };
 
diff --git a/pkgs/by-name/pe/perseus/package.nix b/pkgs/by-name/pe/perseus/package.nix
index 8e83890ea2f9..27bb58ec764e 100644
--- a/pkgs/by-name/pe/perseus/package.nix
+++ b/pkgs/by-name/pe/perseus/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   hardeningDisable = [ "stackprotector" ];
 
   src = fetchurl {
-    url = "http://people.maths.ox.ac.uk/nanda/source/perseus_4_beta.zip";
+    url = "https://people.maths.ox.ac.uk/nanda/source/perseus_4_beta.zip";
     sha256 = "sha256-cnkJEIC4tu+Ni7z0cKdjmLdS8QLe8iKpdA8uha2MeSU=";
   };
 
diff --git a/pkgs/by-name/ph/phrasendrescher/package.nix b/pkgs/by-name/ph/phrasendrescher/package.nix
index a20aedbcb209..a354719fc240 100644
--- a/pkgs/by-name/ph/phrasendrescher/package.nix
+++ b/pkgs/by-name/ph/phrasendrescher/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.2.2c";
 
   src = fetchurl {
-    url = "http://leidecker.info/projects/phrasendrescher/phrasendrescher-${finalAttrs.version}.tar.gz";
+    url = "https://leidecker.info/projects/phrasendrescher/phrasendrescher-${finalAttrs.version}.tar.gz";
     sha256 = "18vg6h294219v14x5zqm8ddmq5amxlbz7pw81lcmpz8v678kwyph";
   };
 
diff --git a/pkgs/by-name/pi/pinpoint/package.nix b/pkgs/by-name/pi/pinpoint/package.nix
index 59ea724b6a98..78d744acf9e0 100644
--- a/pkgs/by-name/pi/pinpoint/package.nix
+++ b/pkgs/by-name/pi/pinpoint/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "pinpoint";
   version = "0.1.8";
   src = fetchurl {
-    url = "http://ftp.gnome.org/pub/GNOME/sources/pinpoint/0.1/pinpoint-${finalAttrs.version}.tar.xz";
+    url = "https://ftp.gnome.org/pub/GNOME/sources/pinpoint/0.1/pinpoint-${finalAttrs.version}.tar.xz";
     sha256 = "1jp8chr9vjlpb5lybwp5cg6g90ak5jdzz9baiqkbg0anlg8ps82s";
   };
   nativeBuildInputs = [
diff --git a/pkgs/by-name/po/pod2mdoc/package.nix b/pkgs/by-name/po/pod2mdoc/package.nix
index ac904405b80a..577e7b8735fa 100644
--- a/pkgs/by-name/po/pod2mdoc/package.nix
+++ b/pkgs/by-name/po/pod2mdoc/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.2";
 
   src = fetchurl {
-    url = "http://mdocml.bsd.lv/pod2mdoc/snapshots/pod2mdoc-${finalAttrs.version}.tgz";
+    url = "https://mdocml.bsd.lv/pod2mdoc/snapshots/pod2mdoc-${finalAttrs.version}.tgz";
     hash = "sha256-dPH+MfYdyHauClcD7N1zwjw4EPdtt9uQGCUh9OomsPw=";
   };
 
diff --git a/pkgs/by-name/po/polygraph/package.nix b/pkgs/by-name/po/polygraph/package.nix
index e2d697162543..dbde38c22c93 100644
--- a/pkgs/by-name/po/polygraph/package.nix
+++ b/pkgs/by-name/po/polygraph/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "4.13.0";
 
   src = fetchurl {
-    url = "http://www.web-polygraph.org/downloads/srcs/polygraph-${finalAttrs.version}-src.tgz";
+    url = "https://www.web-polygraph.org/downloads/srcs/polygraph-${finalAttrs.version}-src.tgz";
     sha256 = "1rwzci3n7q33hw3spd79adnclzwgwlxcisc9szzjmcjqhbkcpj1a";
   };
 
diff --git a/pkgs/by-name/po/popa3d/package.nix b/pkgs/by-name/po/popa3d/package.nix
index 637a34ef94e1..f617760672a5 100644
--- a/pkgs/by-name/po/popa3d/package.nix
+++ b/pkgs/by-name/po/popa3d/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.0.3";
 
   src = fetchurl {
-    url = "http://www.openwall.com/popa3d/popa3d-${finalAttrs.version}.tar.gz";
+    url = "https://www.openwall.com/popa3d/popa3d-${finalAttrs.version}.tar.gz";
     hash = "sha256-A7hT2vnyQm/RjUENM76C7zofCcFQ0spNIhRiTU5jiLw=";
   };
 
diff --git a/pkgs/by-name/pu/pulseaudio/package.nix b/pkgs/by-name/pu/pulseaudio/package.nix
index 16446fd21597..d166190cffc6 100644
--- a/pkgs/by-name/pu/pulseaudio/package.nix
+++ b/pkgs/by-name/pu/pulseaudio/package.nix
@@ -73,7 +73,7 @@ stdenv.mkDerivation rec {
   version = "17.0";
 
   src = fetchurl {
-    url = "http://freedesktop.org/software/pulseaudio/releases/pulseaudio-${version}.tar.xz";
+    url = "https://freedesktop.org/software/pulseaudio/releases/pulseaudio-${version}.tar.xz";
     hash = "sha256-BTeU1mcaPjl9hJ5HioC4KmPLnYyilr01tzMXu1zrh7U=";
   };
 
diff --git a/pkgs/by-name/rr/rrootage/package.nix b/pkgs/by-name/rr/rrootage/package.nix
index a3962c06b48c..8fb7d1b4e241 100644
--- a/pkgs/by-name/rr/rrootage/package.nix
+++ b/pkgs/by-name/rr/rrootage/package.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
   pname = "rrootage";
   inherit version;
   src = fetchurl {
-    url = "http://downloads.sourceforge.net/rrootage/rRootage-${version}.tar.gz";
+    url = "https://downloads.sourceforge.net/rrootage/rRootage-${version}.tar.gz";
     sha256 = "01zzg4ih3kmbhsn1p9zr7g8srv1d2dhrp8cdd86y9qq233idnkln";
   };
 
diff --git a/pkgs/by-name/ru/runit/package.nix b/pkgs/by-name/ru/runit/package.nix
index f4a5de244edd..7975e253be52 100644
--- a/pkgs/by-name/ru/runit/package.nix
+++ b/pkgs/by-name/ru/runit/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   version = "2.2.0";
 
   src = fetchurl {
-    url = "http://smarden.org/runit/${pname}-${version}.tar.gz";
+    url = "https://smarden.org/runit/${pname}-${version}.tar.gz";
     sha256 = "sha256-le9NKGi5eMcXn+R5AeXFeOEc8nPSkr1iCL06fMsCkpA=";
   };
 
diff --git a/pkgs/by-name/sa/safefile/package.nix b/pkgs/by-name/sa/safefile/package.nix
index f1fef40defcc..72c3b46fff76 100644
--- a/pkgs/by-name/sa/safefile/package.nix
+++ b/pkgs/by-name/sa/safefile/package.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.0.5";
 
   src = fetchurl {
-    url = "http://research.cs.wisc.edu/mist/safefile/releases/safefile-${finalAttrs.version}.tar.gz";
+    url = "https://research.cs.wisc.edu/mist/safefile/releases/safefile-${finalAttrs.version}.tar.gz";
     sha256 = "1y0gikds2nr8jk8smhrl617njk23ymmpxyjb2j1xbj0k82xspv78";
   };
 
diff --git a/pkgs/by-name/sa/saleae-logic/package.nix b/pkgs/by-name/sa/saleae-logic/package.nix
index 6187c38a149d..b7443047f830 100644
--- a/pkgs/by-name/sa/saleae-logic/package.nix
+++ b/pkgs/by-name/sa/saleae-logic/package.nix
@@ -69,7 +69,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     name = "saleae-logic-${version}-64bit.zip";
-    url = "http://downloads.saleae.com/logic/${version}/Logic%20${version}%20(64-bit).zip";
+    url = "https://downloads.saleae.com/logic/${version}/Logic%20${version}%20(64-bit).zip";
     sha256 = "0lhair2vsg8sjvzicvfcjfmvy30q7i01xj4z02iqh7pgzpb025h8";
   };
 
diff --git a/pkgs/by-name/sa/samsung-unified-linux-driver_1_00_36/package.nix b/pkgs/by-name/sa/samsung-unified-linux-driver_1_00_36/package.nix
index e45dfa5cc1b9..22928f9e13a0 100644
--- a/pkgs/by-name/sa/samsung-unified-linux-driver_1_00_36/package.nix
+++ b/pkgs/by-name/sa/samsung-unified-linux-driver_1_00_36/package.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   src = fetchurl {
     sha256 = "1a7ngd03x0bkdl7pszy5zqqic0plxvdxqm5w7klr6hbdskx1lir9";
-    url = "http://www.bchemnet.com/suldr/driver/UnifiedLinuxDriver-${finalAttrs.version}.tar.gz";
+    url = "https://www.bchemnet.com/suldr/driver/UnifiedLinuxDriver-${finalAttrs.version}.tar.gz";
   };
 
   buildInputs = [
diff --git a/pkgs/by-name/sc/scheherazade/package.nix b/pkgs/by-name/sc/scheherazade/package.nix
index 463ce8a01ff4..808e94cf0bce 100644
--- a/pkgs/by-name/sc/scheherazade/package.nix
+++ b/pkgs/by-name/sc/scheherazade/package.nix
@@ -22,7 +22,7 @@ stdenvNoCC.mkDerivation rec {
   inherit pname version;
 
   src = fetchzip {
-    url = "http://software.sil.org/downloads/r/scheherazade/Scheherazade${lib.optionalString new "New"}-${version}.zip";
+    url = "https://software.sil.org/downloads/r/scheherazade/Scheherazade${lib.optionalString new "New"}-${version}.zip";
     inherit hash;
   };
 
diff --git a/pkgs/by-name/sd/sdparm/package.nix b/pkgs/by-name/sd/sdparm/package.nix
index 721659e2d4f9..c1dcff7ca218 100644
--- a/pkgs/by-name/sd/sdparm/package.nix
+++ b/pkgs/by-name/sd/sdparm/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.12";
 
   src = fetchurl {
-    url = "http://sg.danny.cz/sg/p/sdparm-${finalAttrs.version}.tar.xz";
+    url = "https://sg.danny.cz/sg/p/sdparm-${finalAttrs.version}.tar.xz";
     sha256 = "sha256-xMnvr9vrZi4vlxJwfsSQkyvU0BC7ESmueplSZUburb4=";
   };
 
diff --git a/pkgs/by-name/se/selenium-server-standalone/package.nix b/pkgs/by-name/se/selenium-server-standalone/package.nix
index 5bed04bafcbd..d6c16942ad5f 100644
--- a/pkgs/by-name/se/selenium-server-standalone/package.nix
+++ b/pkgs/by-name/se/selenium-server-standalone/package.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   version = "${minorVersion}.${patchVersion}";
 
   src = fetchurl {
-    url = "http://selenium-release.storage.googleapis.com/${minorVersion}/selenium-server-standalone-${version}.jar";
+    url = "https://selenium-release.storage.googleapis.com/${minorVersion}/selenium-server-standalone-${version}.jar";
     sha256 = "1jzkx0ahsb27zzzfvjqv660x9fz2pbcddgmhdzdmasxns5vipxxc";
   };
 
diff --git a/pkgs/by-name/se/serviio/package.nix b/pkgs/by-name/se/serviio/package.nix
index 28aee79715b8..5cf037176f85 100644
--- a/pkgs/by-name/se/serviio/package.nix
+++ b/pkgs/by-name/se/serviio/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   version = "2.4";
 
   src = fetchurl {
-    url = "http://download.serviio.org/releases/${pname}-${version}-linux.tar.gz";
+    url = "https://download.serviio.org/releases/${pname}-${version}-linux.tar.gz";
     sha256 = "sha256-ssi2fKbAMizr5eLAMng+G25ui3v98zCNWzMg7uLgGas=";
   };
 
diff --git a/pkgs/by-name/sf/sfxr/package.nix b/pkgs/by-name/sf/sfxr/package.nix
index 9fdf777c8165..769c0b589f9b 100644
--- a/pkgs/by-name/sf/sfxr/package.nix
+++ b/pkgs/by-name/sf/sfxr/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.2.1";
 
   src = fetchurl {
-    url = "http://www.drpetter.se/files/sfxr-sdl-${finalAttrs.version}.tar.gz";
+    url = "https://www.drpetter.se/files/sfxr-sdl-${finalAttrs.version}.tar.gz";
     sha256 = "0dfqgid6wzzyyhc0ha94prxax59wx79hqr25r6if6by9cj4vx4ya";
   };
 
diff --git a/pkgs/by-name/sg/sgt-puzzles/package.nix b/pkgs/by-name/sg/sgt-puzzles/package.nix
index 0ddd97133e13..2e0b2b9768c2 100644
--- a/pkgs/by-name/sg/sgt-puzzles/package.nix
+++ b/pkgs/by-name/sg/sgt-puzzles/package.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "20260309.06e37f1";
 
   src = fetchurl {
-    url = "http://www.chiark.greenend.org.uk/~sgtatham/puzzles/puzzles-${finalAttrs.version}.tar.gz";
+    url = "https://www.chiark.greenend.org.uk/~sgtatham/puzzles/puzzles-${finalAttrs.version}.tar.gz";
     hash = "sha256-3Z/Qp8D/0DeJL9oZlKL6vx9BXvMVFa6MMnkStds/VHI=";
   };
 
diff --git a/pkgs/by-name/si/siege/package.nix b/pkgs/by-name/si/siege/package.nix
index c8ae9581c569..d7bc095f546e 100644
--- a/pkgs/by-name/si/siege/package.nix
+++ b/pkgs/by-name/si/siege/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "4.1.7";
 
   src = fetchurl {
-    url = "http://download.joedog.org/siege/siege-${finalAttrs.version}.tar.gz";
+    url = "https://download.joedog.org/siege/siege-${finalAttrs.version}.tar.gz";
     hash = "sha256-7BQM7dFZl5OD1g2+h6AVHCwSraeHkQlaj6hK5jW5MCY=";
   };
 
diff --git a/pkgs/by-name/si/sipcalc/package.nix b/pkgs/by-name/si/sipcalc/package.nix
index 76374fa087fa..34155824ec24 100644
--- a/pkgs/by-name/si/sipcalc/package.nix
+++ b/pkgs/by-name/si/sipcalc/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.1.6";
 
   src = fetchurl {
-    url = "http://www.routemeister.net/projects/sipcalc/files/sipcalc-${finalAttrs.version}.tar.gz";
+    url = "https://www.routemeister.net/projects/sipcalc/files/sipcalc-${finalAttrs.version}.tar.gz";
     sha256 = "cfd476c667f7a119e49eb5fe8adcfb9d2339bc2e0d4d01a1d64b7c229be56357";
   };
 
diff --git a/pkgs/by-name/sm/smack/package.nix b/pkgs/by-name/sm/smack/package.nix
index 8df583d8b13d..046cbb9b922c 100644
--- a/pkgs/by-name/sm/smack/package.nix
+++ b/pkgs/by-name/sm/smack/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "4.1.9";
 
   src = fetchurl {
-    url = "http://www.igniterealtime.org/downloadServlet?filename=smack/smack_${
+    url = "https://www.igniterealtime.org/downloadServlet?filename=smack/smack_${
       lib.replaceStrings [ "." ] [ "_" ] finalAttrs.version
     }.tar.gz";
     sha256 = "009x0qcxd4dkvwcjz2nla470pwbabwvg37wc21pslpw42ldi0bzp";
diff --git a/pkgs/by-name/sn/snmpcheck/package.nix b/pkgs/by-name/sn/snmpcheck/package.nix
index 70187ae0b091..93293876c0a8 100644
--- a/pkgs/by-name/sn/snmpcheck/package.nix
+++ b/pkgs/by-name/sn/snmpcheck/package.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "snmpcheck";
   version = "1.9";
   src = fetchurl {
-    url = "http://www.nothink.org/codes/snmpcheck/snmpcheck-${finalAttrs.version}.rb";
+    url = "https://www.nothink.org/codes/snmpcheck/snmpcheck-${finalAttrs.version}.rb";
     sha256 = "sha256-9xkLqbgxU1uykx+M9QsbPAH8OI/Cqn9uw6ALe23Lbq0=";
     executable = true;
   };
diff --git a/pkgs/by-name/sp/spass/package.nix b/pkgs/by-name/sp/spass/package.nix
index b629b8efe518..945a4a12fc41 100644
--- a/pkgs/by-name/sp/spass/package.nix
+++ b/pkgs/by-name/sp/spass/package.nix
@@ -20,7 +20,7 @@ gccStdenv.mkDerivation {
   version = "${baseVersion}.${minorVersion}";
 
   src = fetchurl {
-    url = "http://www.spass-prover.org/download/sources/spass${baseVersion}${minorVersion}.tgz";
+    url = "https://www.spass-prover.org/download/sources/spass${baseVersion}${minorVersion}.tgz";
     sha256 = "11cyn3kcff4r79rsw2s0xm6rdb8bi0kpkazv2b48jhcms7xw75qp";
   };
 
diff --git a/pkgs/by-name/sp/sphinxsearch/package.nix b/pkgs/by-name/sp/sphinxsearch/package.nix
index 87cd529882aa..1c866198c60e 100644
--- a/pkgs/by-name/sp/sphinxsearch/package.nix
+++ b/pkgs/by-name/sp/sphinxsearch/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.2.11";
 
   src = fetchurl {
-    url = "http://sphinxsearch.com/files/sphinx-${finalAttrs.version}-release.tar.gz";
+    url = "https://sphinxsearch.com/files/sphinx-${finalAttrs.version}-release.tar.gz";
     sha256 = "1aa1mh32y019j8s3sjzn4vwi0xn83dwgl685jnbgh51k16gh6qk6";
   };
 
diff --git a/pkgs/by-name/sp/spooles/package.nix b/pkgs/by-name/sp/spooles/package.nix
index f0256be80c8d..c413bb24e0e3 100644
--- a/pkgs/by-name/sp/spooles/package.nix
+++ b/pkgs/by-name/sp/spooles/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.2";
 
   src = fetchurl {
-    url = "http://www.netlib.org/linalg/spooles/spooles.${finalAttrs.version}.tgz";
+    url = "https://www.netlib.org/linalg/spooles/spooles.${finalAttrs.version}.tgz";
     sha256 = "1pf5z3vvwd8smbpibyabprdvcmax0grzvx2y0liy98c7x6h5jid8";
   };
 
diff --git a/pkgs/by-name/st/stacks/package.nix b/pkgs/by-name/st/stacks/package.nix
index 6348636f15e6..46bed3ec1250 100644
--- a/pkgs/by-name/st/stacks/package.nix
+++ b/pkgs/by-name/st/stacks/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "stacks";
   version = "2.68";
   src = fetchurl {
-    url = "http://catchenlab.life.illinois.edu/stacks/source/stacks-${finalAttrs.version}.tar.gz";
+    url = "https://catchenlab.life.illinois.edu/stacks/source/stacks-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-ncUeo1bWDrRVewstGohUqvrkkq7Yf5dOAknMCapedlA=";
   };
 
diff --git a/pkgs/by-name/st/statserial/package.nix b/pkgs/by-name/st/statserial/package.nix
index 2335a22db2aa..b8899b58484c 100644
--- a/pkgs/by-name/st/statserial/package.nix
+++ b/pkgs/by-name/st/statserial/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.1";
 
   src = fetchurl {
-    url = "http://www.ibiblio.org/pub/Linux/system/serial/statserial-${finalAttrs.version}.tar.gz";
+    url = "https://www.ibiblio.org/pub/Linux/system/serial/statserial-${finalAttrs.version}.tar.gz";
     sha256 = "0rrrmxfba5yn836zlgmr8g9xnrpash7cjs7lk2m44ac50vakpks0";
   };
 
diff --git a/pkgs/by-name/st/stone/package.nix b/pkgs/by-name/st/stone/package.nix
index 165c5f4241e0..70cf342e76b0 100644
--- a/pkgs/by-name/st/stone/package.nix
+++ b/pkgs/by-name/st/stone/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.4";
 
   src = fetchurl {
-    url = "http://www.gcd.org/sengoku/stone/stone-${finalAttrs.version}.tar.gz";
+    url = "https://www.gcd.org/sengoku/stone/stone-${finalAttrs.version}.tar.gz";
     hash = "sha256-1dwa9uxdpQPypAs98/4ZqPv5085pa49G9NU9KsjY628=";
   };
 
diff --git a/pkgs/by-name/sw/swfmill/package.nix b/pkgs/by-name/sw/swfmill/package.nix
index 0e7cdfc8fe34..531f789d7bf4 100644
--- a/pkgs/by-name/sw/swfmill/package.nix
+++ b/pkgs/by-name/sw/swfmill/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.3.6";
 
   src = fetchurl {
-    url = "http://swfmill.org/releases/swfmill-${finalAttrs.version}.tar.gz";
+    url = "https://swfmill.org/releases/swfmill-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-2yT2OWOVf67AK7FLi2HNr3CWd0+M/eudNXPi4ZIxVI4=";
   };
 
diff --git a/pkgs/by-name/sw/swiften/package.nix b/pkgs/by-name/sw/swiften/package.nix
index 961618dd0e89..b3ccb17599ee 100644
--- a/pkgs/by-name/sw/swiften/package.nix
+++ b/pkgs/by-name/sw/swiften/package.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "4.0.3";
 
   src = fetchurl {
-    url = "http://swift.im/git/swift/snapshot/swift-${finalAttrs.version}.tar.bz2";
+    url = "https://swift.im/git/swift/snapshot/swift-${finalAttrs.version}.tar.bz2";
     hash = "sha256-aj+T6AevtR8birbsj+83nfzFC6cf72q+7nwSM0jaZrA=";
   };
 
diff --git a/pkgs/by-name/ta/tango-icon-theme/package.nix b/pkgs/by-name/ta/tango-icon-theme/package.nix
index 5e41a3f2b697..e2d7277ee0d7 100644
--- a/pkgs/by-name/ta/tango-icon-theme/package.nix
+++ b/pkgs/by-name/ta/tango-icon-theme/package.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.8.90";
 
   src = fetchurl {
-    url = "http://tango.freedesktop.org/releases/tango-icon-theme-${finalAttrs.version}.tar.gz";
+    url = "https://tango.freedesktop.org/releases/tango-icon-theme-${finalAttrs.version}.tar.gz";
     sha256 = "13n8cpml71w6zfm2jz5fa7r1z18qlzk4gv07r6n1in2p5l1xi63f";
   };
 
diff --git a/pkgs/by-name/te/ted/package.nix b/pkgs/by-name/te/ted/package.nix
index 643a53c86a23..6be4b24a52da 100644
--- a/pkgs/by-name/te/ted/package.nix
+++ b/pkgs/by-name/te/ted/package.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   version = "2.23";
 
   src = fetchurl {
-    url = "http://ftp.nluug.nl/pub/editors/ted/ted-${version}.src.tar.gz";
+    url = "https://ftp.nluug.nl/pub/editors/ted/ted-${version}.src.tar.gz";
     hash = "sha256-P6mSwryWrzyniO+UHLUxT0odhDIC79AgG4tO6a2/MWw=";
   };
 
diff --git a/pkgs/by-name/te/telepathy-idle/package.nix b/pkgs/by-name/te/telepathy-idle/package.nix
index 4ed933553676..5aed5c273f56 100644
--- a/pkgs/by-name/te/telepathy-idle/package.nix
+++ b/pkgs/by-name/te/telepathy-idle/package.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.2.2";
 
   src = fetchurl {
-    url = "http://telepathy.freedesktop.org/releases/telepathy-idle/telepathy-idle-${finalAttrs.version}.tar.gz";
+    url = "https://telepathy.freedesktop.org/releases/telepathy-idle/telepathy-idle-${finalAttrs.version}.tar.gz";
     hash = "sha256-g4fiXl+wtMvnAeXcCS1mbWUQuDP9Pn5GLpFw027DwV8=";
   };
 
diff --git a/pkgs/by-name/te/tetgen/package.nix b/pkgs/by-name/te/tetgen/package.nix
index d027d6904076..510e971e4c48 100644
--- a/pkgs/by-name/te/tetgen/package.nix
+++ b/pkgs/by-name/te/tetgen/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.6.0";
 
   src = fetchurl {
-    url = "http://wias-berlin.de/software/tetgen/1.5/src/tetgen${finalAttrs.version}.tar.gz";
+    url = "https://wias-berlin.de/software/tetgen/1.5/src/tetgen${finalAttrs.version}.tar.gz";
     sha256 = "sha256-h7XmHr06Rx/E8s3XEkwrEd1mOfT+sflBpdL1EQ0Fzjk=";
   };
 
diff --git a/pkgs/by-name/te/texi2mdoc/package.nix b/pkgs/by-name/te/texi2mdoc/package.nix
index 6e3bec3b486f..e727c62c2dd5 100644
--- a/pkgs/by-name/te/texi2mdoc/package.nix
+++ b/pkgs/by-name/te/texi2mdoc/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.1.2";
 
   src = fetchurl {
-    url = "http://mdocml.bsd.lv/texi2mdoc/snapshots/texi2mdoc-${finalAttrs.version}.tgz";
+    url = "https://mdocml.bsd.lv/texi2mdoc/snapshots/texi2mdoc-${finalAttrs.version}.tgz";
     sha256 = "1zjb61ymwfkw6z5g0aqmsn6qpw895zdxv7fv3059gj3wqa3zsibs";
   };
 
diff --git a/pkgs/by-name/te/texmaker/package.nix b/pkgs/by-name/te/texmaker/package.nix
index 8f35448653ee..48dcf789d60e 100644
--- a/pkgs/by-name/te/texmaker/package.nix
+++ b/pkgs/by-name/te/texmaker/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "6.0.1";
 
   src = fetchurl {
-    url = "http://www.xm1math.net/texmaker/texmaker-${finalAttrs.version}.tar.bz2";
+    url = "https://www.xm1math.net/texmaker/texmaker-${finalAttrs.version}.tar.bz2";
     hash = "sha256-uMI13wzY/XcUzXDTte42MWOwJUqd6pGAeBuPDi5GyvY=";
   };
 
diff --git a/pkgs/by-name/ti/tie/package.nix b/pkgs/by-name/ti/tie/package.nix
index 84f98c6d4f27..e8a34e88011a 100644
--- a/pkgs/by-name/ti/tie/package.nix
+++ b/pkgs/by-name/ti/tie/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.4";
 
   src = fetchurl {
-    url = "http://mirrors.ctan.org/web/tie/tie-${finalAttrs.version}.tar.gz";
+    url = "https://mirrors.ctan.org/web/tie/tie-${finalAttrs.version}.tar.gz";
     sha256 = "1m5952kdfffiz33p1jw0wv7dh272mmw28mpxw9v7lkb352zv4xsj";
   };
 
diff --git a/pkgs/by-name/ti/tigerjython/package.nix b/pkgs/by-name/ti/tigerjython/package.nix
index b64b5b6efaef..47ef0ddaa8c4 100644
--- a/pkgs/by-name/ti/tigerjython/package.nix
+++ b/pkgs/by-name/ti/tigerjython/package.nix
@@ -31,7 +31,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   # - Unselect "Save Error Pages" and hit "Save Page" again.
   # - Wait for the archive link to be generated and copy it to the url field - adjust hash accordingly.
   src = fetchurl {
-    url = "http://web.archive.org/web/20250104142121/https://tjgroup.ch/download/TigerJython.tar.gz";
+    url = "https://web.archive.org/web/20250104142121/https://tjgroup.ch/download/TigerJython.tar.gz";
     hash = "sha256-V/POFftRs/jjgNaHOrKcW2AdlQY2yjO+xiwJi63oECo=";
   };
 
diff --git a/pkgs/by-name/ti/titanion/package.nix b/pkgs/by-name/ti/titanion/package.nix
index e8b5e91be894..6e421fcf3d12 100644
--- a/pkgs/by-name/ti/titanion/package.nix
+++ b/pkgs/by-name/ti/titanion/package.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.3";
 
   src = fetchurl {
-    url = "http://abagames.sakura.ne.jp/windows/ttn${
+    url = "https://abagames.sakura.ne.jp/windows/ttn${
       lib.replaceStrings [ "." ] [ "_" ] finalAttrs.version
     }.zip";
     hash = "sha256-fR0cufi6dU898wP8KGl/vxbfQJzMmMxlYZ3QNGLajfM=";
diff --git a/pkgs/by-name/to/torus-trooper/package.nix b/pkgs/by-name/to/torus-trooper/package.nix
index d09f919e57f4..3960d115a750 100644
--- a/pkgs/by-name/to/torus-trooper/package.nix
+++ b/pkgs/by-name/to/torus-trooper/package.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.22";
 
   src = fetchurl {
-    url = "http://abagames.sakura.ne.jp/windows/tt${
+    url = "https://abagames.sakura.ne.jp/windows/tt${
       lib.replaceStrings [ "." ] [ "_" ] finalAttrs.version
     }.zip";
     sha256 = "1yhki1fdp3fi4y2iq12vca69f6k38dqjaw9z4lwcxky5kbgb7jvg";
diff --git a/pkgs/by-name/tt/ttf-envy-code-r/package.nix b/pkgs/by-name/tt/ttf-envy-code-r/package.nix
index 9aaaf06e81d6..db23fa13de74 100644
--- a/pkgs/by-name/tt/ttf-envy-code-r/package.nix
+++ b/pkgs/by-name/tt/ttf-envy-code-r/package.nix
@@ -9,7 +9,7 @@ stdenvNoCC.mkDerivation rec {
   version = "PR7";
 
   src = fetchzip {
-    url = "http://download.damieng.com/fonts/original/EnvyCodeR-${version}.zip";
+    url = "https://download.damieng.com/fonts/original/EnvyCodeR-${version}.zip";
     hash = "sha256-pJqC/sbNjxEwbVf2CVoXMBI5zvT3DqzRlKSqFT8I2sM=";
   };
 
diff --git a/pkgs/by-name/tu/tumiki-fighters/package.nix b/pkgs/by-name/tu/tumiki-fighters/package.nix
index ab654b0aac17..4ae532628e11 100644
--- a/pkgs/by-name/tu/tumiki-fighters/package.nix
+++ b/pkgs/by-name/tu/tumiki-fighters/package.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.21";
 
   src = fetchurl {
-    url = "http://abagames.sakura.ne.jp/windows/tf${
+    url = "https://abagames.sakura.ne.jp/windows/tf${
       lib.replaceStrings [ "." ] [ "_" ] finalAttrs.version
     }.zip";
     sha256 = "0djykfc1r8ysapklm621h89ana1c4qzc1m5nr9bqw4iccnmvwk3p";
diff --git a/pkgs/by-name/ud/udns/package.nix b/pkgs/by-name/ud/udns/package.nix
index eef01290d940..96777492343b 100644
--- a/pkgs/by-name/ud/udns/package.nix
+++ b/pkgs/by-name/ud/udns/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation (finalAttrs: {
   buildPhase = "make staticlib sharedlib rblcheck_s dnsget_s";
 
   src = fetchurl {
-    url = "http://www.corpit.ru/mjt/udns/udns-${finalAttrs.version}.tar.gz";
+    url = "https://www.corpit.ru/mjt/udns/udns-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-aWotDVGNqYXZdaZeEdFm8/V829HUI3aguFMH9JYBxug=";
   };
 
diff --git a/pkgs/by-name/ui/uif2iso/package.nix b/pkgs/by-name/ui/uif2iso/package.nix
index b20265bbf896..95fc5781b3bd 100644
--- a/pkgs/by-name/ui/uif2iso/package.nix
+++ b/pkgs/by-name/ui/uif2iso/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "0.1.7";
 
   src = fetchurl {
-    url = "http://aluigi.altervista.org/mytoolz/uif2iso.zip";
+    url = "https://aluigi.altervista.org/mytoolz/uif2iso.zip";
     sha256 = "1v18fmlzhkkhv8xdc9dyvl8vamwg3ka4dsrg7vvmk1f2iczdx3dp";
   };
 
diff --git a/pkgs/by-name/un/uni-vga/package.nix b/pkgs/by-name/un/uni-vga/package.nix
index 5295e49b1fe2..03ec266767d1 100644
--- a/pkgs/by-name/un/uni-vga/package.nix
+++ b/pkgs/by-name/un/uni-vga/package.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation {
   version = "0-unstable-2002-10-31";
 
   src = fetchurl {
-    url = "http://www.inp.nsk.su/~bolkhov/files/fonts/univga/uni-vga.tgz";
+    url = "https://www.inp.nsk.su/~bolkhov/files/fonts/univga/uni-vga.tgz";
     sha256 = "05sns8h5yspa7xkl81ri7y1yxf5icgsnl497f3xnaryhx11s2rv6";
   };
 
diff --git a/pkgs/by-name/vd/vdmfec/package.nix b/pkgs/by-name/vd/vdmfec/package.nix
index 6b9cd7d58c56..26fd1a476ecc 100644
--- a/pkgs/by-name/vd/vdmfec/package.nix
+++ b/pkgs/by-name/vd/vdmfec/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.0";
 
   src = fetchurl {
-    url = "http://members.tripod.com/professor_tom/archives/vdmfec-${finalAttrs.version}.tgz";
+    url = "https://members.tripod.com/professor_tom/archives/vdmfec-${finalAttrs.version}.tgz";
     sha256 = "0i7q4ylx2xmzzq778anpkj4nqir5gf573n1lbpxnbc10ymsjq2rm";
   };
 
diff --git a/pkgs/by-name/vn/vncrec/package.nix b/pkgs/by-name/vn/vncrec/package.nix
index 423d9d54acd1..e20df08f0bcb 100644
--- a/pkgs/by-name/vn/vncrec/package.nix
+++ b/pkgs/by-name/vn/vncrec/package.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   version = "0.2"; # version taken from Arch AUR
 
   src = fetchurl {
-    url = "http://ronja.twibright.com/utils/vncrec-twibright.tgz";
+    url = "https://ronja.twibright.com/utils/vncrec-twibright.tgz";
     sha256 = "1yp6r55fqpdhc8cgrgh9i0mzxmkls16pgf8vfcpng1axr7cigyhc";
   };
 
diff --git a/pkgs/by-name/vo/vorbis-tools/package.nix b/pkgs/by-name/vo/vorbis-tools/package.nix
index 386641b82b99..d31b0425cce1 100644
--- a/pkgs/by-name/vo/vorbis-tools/package.nix
+++ b/pkgs/by-name/vo/vorbis-tools/package.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.4.3";
 
   src = fetchurl {
-    url = "http://downloads.xiph.org/releases/vorbis/vorbis-tools-${finalAttrs.version}.tar.gz";
+    url = "https://downloads.xiph.org/releases/vorbis/vorbis-tools-${finalAttrs.version}.tar.gz";
     hash = "sha256-of493Gd3vc6/a3l+ft/gQ3lUskdW/8yMa4FrY+BGDd4=";
   };
 
diff --git a/pkgs/by-name/wd/wdfs/package.nix b/pkgs/by-name/wd/wdfs/package.nix
index 654ddc482f6e..5afcb7de209e 100644
--- a/pkgs/by-name/wd/wdfs/package.nix
+++ b/pkgs/by-name/wd/wdfs/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.4.2";
 
   src = fetchurl {
-    url = "http://noedler.de/projekte/wdfs/wdfs-${finalAttrs.version}.tar.gz";
+    url = "https://noedler.de/projekte/wdfs/wdfs-${finalAttrs.version}.tar.gz";
     sha256 = "fcf2e1584568b07c7f3683a983a9be26fae6534b8109e09167e5dff9114ba2e5";
   };
   nativeBuildInputs = [
diff --git a/pkgs/by-name/we/weather/package.nix b/pkgs/by-name/we/weather/package.nix
index e3479a92b442..9ed0ec516158 100644
--- a/pkgs/by-name/we/weather/package.nix
+++ b/pkgs/by-name/we/weather/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "weather";
 
   src = fetchurl {
-    url = "http://fungi.yuggoth.org/weather/src/weather-${finalAttrs.version}.tar.xz";
+    url = "https://fungi.yuggoth.org/weather/src/weather-${finalAttrs.version}.tar.xz";
     sha256 = "sha256-wn3cpgfrlqntMIiVFh4317DrbGgQ4YRnFz3KHXacTw4=";
   };
 
diff --git a/pkgs/by-name/wo/wordnet/package.nix b/pkgs/by-name/wo/wordnet/package.nix
index ddbd676c8802..a82b10cec122 100644
--- a/pkgs/by-name/wo/wordnet/package.nix
+++ b/pkgs/by-name/wo/wordnet/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "3.0";
   pname = "wordnet";
   src = fetchurl {
-    url = "http://wordnetcode.princeton.edu/${finalAttrs.version}/WordNet-${finalAttrs.version}.tar.bz2";
+    url = "https://wordnetcode.princeton.edu/${finalAttrs.version}/WordNet-${finalAttrs.version}.tar.bz2";
     sha256 = "08pgjvd2vvmqk3h641x63nxp7wqimb9r30889mkyfh2agc62sjbc";
   };
 
diff --git a/pkgs/by-name/x1/x11_ssh_askpass/package.nix b/pkgs/by-name/x1/x11_ssh_askpass/package.nix
index 2543427868d0..d8eb2aeb1653 100644
--- a/pkgs/by-name/x1/x11_ssh_askpass/package.nix
+++ b/pkgs/by-name/x1/x11_ssh_askpass/package.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   src = fetchurl {
-    url = "http://pkgs.fedoraproject.org/repo/pkgs/openssh/x11-ssh-askpass-${finalAttrs.version}.tar.gz/8f2e41f3f7eaa8543a2440454637f3c3/x11-ssh-askpass-${finalAttrs.version}.tar.gz";
+    url = "https://pkgs.fedoraproject.org/repo/pkgs/openssh/x11-ssh-askpass-${finalAttrs.version}.tar.gz/8f2e41f3f7eaa8543a2440454637f3c3/x11-ssh-askpass-${finalAttrs.version}.tar.gz";
     sha256 = "620de3c32ae72185a2c9aeaec03af24242b9621964e38eb625afb6cdb30b8c88";
   };
 
diff --git a/pkgs/by-name/x3/x3270/package.nix b/pkgs/by-name/x3/x3270/package.nix
index 9ea5e52faa47..e474ddc2f15c 100644
--- a/pkgs/by-name/x3/x3270/package.nix
+++ b/pkgs/by-name/x3/x3270/package.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "${majorVersion}.${minorVersion}${versionSuffix}";
 
   src = fetchurl {
-    url = "http://x3270.bgp.nu/download/0${majorVersion}.0${minorVersion}/suite3270-${finalAttrs.version}-src.tgz";
+    url = "https://x3270.bgp.nu/download/0${majorVersion}.0${minorVersion}/suite3270-${finalAttrs.version}-src.tgz";
     hash = "sha256-hDju5ZeVzTv78ZYwUzabmqMK9rheTZJ7clTSTpkkM7E=";
   };
 
diff --git a/pkgs/by-name/xc/xchainkeys/package.nix b/pkgs/by-name/xc/xchainkeys/package.nix
index 84d9ba874de1..f54e6e2f7ae9 100644
--- a/pkgs/by-name/xc/xchainkeys/package.nix
+++ b/pkgs/by-name/xc/xchainkeys/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.11";
 
   src = fetchurl {
-    url = "http://henning-bekel.de/download/xchainkeys/xchainkeys-${finalAttrs.version}.tar.gz";
+    url = "https://henning-bekel.de/download/xchainkeys/xchainkeys-${finalAttrs.version}.tar.gz";
     sha256 = "1rpqs7h5krral08vqxwb0imy33z17v5llvrg5hy8hkl2ap7ya0mn";
   };
 
diff --git a/pkgs/by-name/xc/xcowsay/package.nix b/pkgs/by-name/xc/xcowsay/package.nix
index 41945ed107fb..04c327d82c62 100644
--- a/pkgs/by-name/xc/xcowsay/package.nix
+++ b/pkgs/by-name/xc/xcowsay/package.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.6";
 
   src = fetchurl {
-    url = "http://www.nickg.me.uk/files/xcowsay-${finalAttrs.version}.tar.gz";
+    url = "https://www.nickg.me.uk/files/xcowsay-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-RqzoZP8o0tIfS3BY8CleGNAEGhIMEHipUfpDxOD1yMU=";
   };
 
diff --git a/pkgs/by-name/xe/xearth/package.nix b/pkgs/by-name/xe/xearth/package.nix
index 0d66c890d157..49d17d289cdb 100644
--- a/pkgs/by-name/xe/xearth/package.nix
+++ b/pkgs/by-name/xe/xearth/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.1";
 
   src = fetchurl {
-    url = "http://xearth.org/xearth-${finalAttrs.version}.tar.gz";
+    url = "https://xearth.org/xearth-${finalAttrs.version}.tar.gz";
     hash = "sha256-vLFAfMNbP23TYGssYHInO2qRLL2e0a4i+y0maUVBMJw=";
   };
 
diff --git a/pkgs/by-name/xm/xmage/package.nix b/pkgs/by-name/xm/xmage/package.nix
index aa6be4344ab2..9641b093e38b 100644
--- a/pkgs/by-name/xm/xmage/package.nix
+++ b/pkgs/by-name/xm/xmage/package.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.4.58-dev_2025-10-06_20-40";
 
   src = fetchurl {
-    url = "http://xmage.today/files/mage-full_${finalAttrs.version}.zip";
+    url = "https://xmage.today/files/mage-full_${finalAttrs.version}.zip";
     sha256 = "sha256-UOtxV+ykDIH+PLjLrC66Rut92IIw2iDHWwvJ2ytmUAs=";
   };
 
diff --git a/pkgs/by-name/xv/xvkbd/package.nix b/pkgs/by-name/xv/xvkbd/package.nix
index 9a46213b4e25..db7c7015e44e 100644
--- a/pkgs/by-name/xv/xvkbd/package.nix
+++ b/pkgs/by-name/xv/xvkbd/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "xvkbd";
   version = "4.1";
   src = fetchurl {
-    url = "http://t-sato.in.coocan.jp/xvkbd/xvkbd-${finalAttrs.version}.tar.gz";
+    url = "https://t-sato.in.coocan.jp/xvkbd/xvkbd-${finalAttrs.version}.tar.gz";
     sha256 = "1x5yldv9y99cw5hzzs73ygdn1z80zns9hz0baa355r711zghfbcm";
   };
 
diff --git a/pkgs/by-name/ya/yabasic/package.nix b/pkgs/by-name/ya/yabasic/package.nix
index 5be60c165135..ab6e75feae06 100644
--- a/pkgs/by-name/ya/yabasic/package.nix
+++ b/pkgs/by-name/ya/yabasic/package.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.91.4";
 
   src = fetchurl {
-    url = "http://www.yabasic.de/download/yabasic-${finalAttrs.version}.tar.gz";
+    url = "https://www.yabasic.de/download/yabasic-${finalAttrs.version}.tar.gz";
     hash = "sha256-3JUTNOFmZpSlAx40BHAT6YQgYLxdVPPXLwyfzDoYdlc=";
   };
 
diff --git a/pkgs/by-name/zi/zita-alsa-pcmi/package.nix b/pkgs/by-name/zi/zita-alsa-pcmi/package.nix
index 2dcce030619a..2afe5eeb2aaa 100644
--- a/pkgs/by-name/zi/zita-alsa-pcmi/package.nix
+++ b/pkgs/by-name/zi/zita-alsa-pcmi/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "zita-alsa-pcmi";
   version = "0.6.1";
   src = fetchurl {
-    url = "http://kokkinizita.linuxaudio.org/linuxaudio/downloads/zita-alsa-pcmi-${finalAttrs.version}.tar.bz2";
+    url = "https://kokkinizita.linuxaudio.org/linuxaudio/downloads/zita-alsa-pcmi-${finalAttrs.version}.tar.bz2";
     sha256 = "sha256-iil6zj16R0Ex7T+jIQacExM3eFtWojfW8WjIXueW1Ww=";
   };
 
diff --git a/pkgs/by-name/zp/zpaqd/package.nix b/pkgs/by-name/zp/zpaqd/package.nix
index 672453c22743..840ee97d2a64 100644
--- a/pkgs/by-name/zp/zpaqd/package.nix
+++ b/pkgs/by-name/zp/zpaqd/package.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "715";
 
   src = fetchurl {
-    url = "http://mattmahoney.net/dc/zpaqd${finalAttrs.version}.zip";
+    url = "https://mattmahoney.net/dc/zpaqd${finalAttrs.version}.zip";
     sha256 = "sha256-Mx87Zt0AASk0ZZCjyTzYbhlYJAXBlb59OpUWsqynyCA=";
   };
 
diff --git a/pkgs/by-name/zt/ztools/package.nix b/pkgs/by-name/zt/ztools/package.nix
index 1baf1fe466c8..ec350f76065c 100644
--- a/pkgs/by-name/zt/ztools/package.nix
+++ b/pkgs/by-name/zt/ztools/package.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "7/3.1";
 
   src = fetchurl {
-    url = "http://mirror.ifarchive.org/if-archive/infocom/tools/ztools/ztools731.tar.gz";
+    url = "https://mirror.ifarchive.org/if-archive/infocom/tools/ztools/ztools731.tar.gz";
     hash = "sha256-vlQX0/fCAr88KJwMnYUSROFOg9tfVK5Hz58AUDuhNXg=";
   };
 
diff --git a/pkgs/data/fonts/tex-gyre-math/default.nix b/pkgs/data/fonts/tex-gyre-math/default.nix
index c7773ede80f1..dde9aa13ede6 100644
--- a/pkgs/data/fonts/tex-gyre-math/default.nix
+++ b/pkgs/data/fonts/tex-gyre-math/default.nix
@@ -48,7 +48,7 @@ let
       inherit version;
 
       src = fetchzip {
-        url = "http://www.gust.org.pl/projects/e-foundry/tg-math/download/texgyre${variant}-math-${dotless_version}.zip";
+        url = "https://www.gust.org.pl/projects/e-foundry/tg-math/download/texgyre${variant}-math-${dotless_version}.zip";
         inherit sha256;
       };
 
diff --git a/pkgs/data/fonts/tex-gyre/default.nix b/pkgs/data/fonts/tex-gyre/default.nix
index 5a972b0e3309..9b6fd83a85fb 100644
--- a/pkgs/data/fonts/tex-gyre/default.nix
+++ b/pkgs/data/fonts/tex-gyre/default.nix
@@ -18,7 +18,7 @@ let
       inherit version;
 
       src = fetchzip {
-        url = "http://www.gust.org.pl/projects/e-foundry/tex-gyre/${variant}/${abbreviation}${version}otf.zip";
+        url = "https://www.gust.org.pl/projects/e-foundry/tex-gyre/${variant}/${abbreviation}${version}otf.zip";
         stripRoot = false;
         inherit sha256;
       };
diff --git a/pkgs/desktops/enlightenment/ecrire/default.nix b/pkgs/desktops/enlightenment/ecrire/default.nix
index 548a12d86bd4..eb113fd93d0f 100644
--- a/pkgs/desktops/enlightenment/ecrire/default.nix
+++ b/pkgs/desktops/enlightenment/ecrire/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   version = "0.2.0";
 
   src = fetchurl {
-    url = "http://download.enlightenment.org/rel/apps/${pname}/${pname}-${version}.tar.xz";
+    url = "https://download.enlightenment.org/rel/apps/${pname}/${pname}-${version}.tar.xz";
     sha256 = "1pszk583rzclfqy3dyjh1m9pz1hnr84vqz8vw9kngcnmj23mjr6r";
   };
 
diff --git a/pkgs/desktops/enlightenment/efl/default.nix b/pkgs/desktops/enlightenment/efl/default.nix
index aa5c08282527..ecf4c384c02c 100644
--- a/pkgs/desktops/enlightenment/efl/default.nix
+++ b/pkgs/desktops/enlightenment/efl/default.nix
@@ -76,7 +76,7 @@ stdenv.mkDerivation rec {
   version = "1.28.1";
 
   src = fetchurl {
-    url = "http://download.enlightenment.org/rel/libs/${pname}/${pname}-${version}.tar.xz";
+    url = "https://download.enlightenment.org/rel/libs/${pname}/${pname}-${version}.tar.xz";
     sha256 = "sha256-hM9hRfnMgr//aQAFviQ5LI88UvjgD/BNjuo3FCnAlCQ=";
   };
 
diff --git a/pkgs/desktops/enlightenment/ephoto/default.nix b/pkgs/desktops/enlightenment/ephoto/default.nix
index 4c6b6f47c021..bc26507df812 100644
--- a/pkgs/desktops/enlightenment/ephoto/default.nix
+++ b/pkgs/desktops/enlightenment/ephoto/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   version = "1.6.0";
 
   src = fetchurl {
-    url = "http://download.enlightenment.org/rel/apps/${pname}/${pname}-${version}.tar.xz";
+    url = "https://download.enlightenment.org/rel/apps/${pname}/${pname}-${version}.tar.xz";
     sha256 = "1lvhcs4ba8h3z78nyycbww8mj4cscb8k200dcc3cdy8vrvrp7g1n";
   };
 
diff --git a/pkgs/desktops/enlightenment/rage/default.nix b/pkgs/desktops/enlightenment/rage/default.nix
index 8fa306037cd5..3e7f8f2abfa0 100644
--- a/pkgs/desktops/enlightenment/rage/default.nix
+++ b/pkgs/desktops/enlightenment/rage/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   version = "0.4.0";
 
   src = fetchurl {
-    url = "http://download.enlightenment.org/rel/apps/${pname}/${pname}-${version}.tar.xz";
+    url = "https://download.enlightenment.org/rel/apps/${pname}/${pname}-${version}.tar.xz";
     sha256 = "03yal7ajh57x2jhmygc6msf3gzvqkpmzkqzj6dnam5sim8cq9rbw";
   };
 
diff --git a/pkgs/development/compilers/ocaml/ber-metaocaml.nix b/pkgs/development/compilers/ocaml/ber-metaocaml.nix
index 3110e7172a07..778aac812808 100644
--- a/pkgs/development/compilers/ocaml/ber-metaocaml.nix
+++ b/pkgs/development/compilers/ocaml/ber-metaocaml.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
   };
 
   metaocaml = fetchurl {
-    url = "http://okmij.org/ftp/ML/ber-metaocaml-${metaocamlPatch}.tar.gz";
+    url = "https://okmij.org/ftp/ML/ber-metaocaml-${metaocamlPatch}.tar.gz";
     sha256 = "sha256-vvq3xI4jSAsrXcDk97TPbFDYgO9NcQeN/yBcUbcb/y0=";
   };
 
diff --git a/pkgs/development/interpreters/python/cpython/docs/2.7-html.nix b/pkgs/development/interpreters/python/cpython/docs/2.7-html.nix
index c725b8ee62e2..e706fc0b9125 100644
--- a/pkgs/development/interpreters/python/cpython/docs/2.7-html.nix
+++ b/pkgs/development/interpreters/python/cpython/docs/2.7-html.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "2.7.18";
 
   src = fetchurl {
-    url = "http://www.python.org/ftp/python/doc/2.7.18/python-2.7.18-docs-html.tar.bz2";
+    url = "https://www.python.org/ftp/python/doc/2.7.18/python-2.7.18-docs-html.tar.bz2";
     sha256 = "03igxwpqc2lvzspnj78zz1prnmfwwj00jbvh1wsxvb0wayd5wi10";
   };
   installPhase = ''
diff --git a/pkgs/development/interpreters/python/cpython/docs/2.7-pdf-a4.nix b/pkgs/development/interpreters/python/cpython/docs/2.7-pdf-a4.nix
index 5ab066d7991b..31d8a2fe337f 100644
--- a/pkgs/development/interpreters/python/cpython/docs/2.7-pdf-a4.nix
+++ b/pkgs/development/interpreters/python/cpython/docs/2.7-pdf-a4.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "2.7.18";
 
   src = fetchurl {
-    url = "http://www.python.org/ftp/python/doc/2.7.18/python-2.7.18-docs-pdf-a4.tar.bz2";
+    url = "https://www.python.org/ftp/python/doc/2.7.18/python-2.7.18-docs-pdf-a4.tar.bz2";
     sha256 = "0rxb2fpxwivjpk5wi2pl1fqibr4khf9s0yq6a49k9b4awi9nkb6v";
   };
   installPhase = ''
diff --git a/pkgs/development/interpreters/python/cpython/docs/2.7-pdf-letter.nix b/pkgs/development/interpreters/python/cpython/docs/2.7-pdf-letter.nix
index af0e8a4c38f4..7ee205efc947 100644
--- a/pkgs/development/interpreters/python/cpython/docs/2.7-pdf-letter.nix
+++ b/pkgs/development/interpreters/python/cpython/docs/2.7-pdf-letter.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "2.7.18";
 
   src = fetchurl {
-    url = "http://www.python.org/ftp/python/doc/2.7.18/python-2.7.18-docs-pdf-letter.tar.bz2";
+    url = "https://www.python.org/ftp/python/doc/2.7.18/python-2.7.18-docs-pdf-letter.tar.bz2";
     sha256 = "07hbqvrdlq01cb95r1574bxqqhiqbkj4f92wzlq4d6dq1l272nan";
   };
   installPhase = ''
diff --git a/pkgs/development/interpreters/python/cpython/docs/2.7-text.nix b/pkgs/development/interpreters/python/cpython/docs/2.7-text.nix
index 4f4bd3a09ef9..8caea548ffa0 100644
--- a/pkgs/development/interpreters/python/cpython/docs/2.7-text.nix
+++ b/pkgs/development/interpreters/python/cpython/docs/2.7-text.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "2.7.18";
 
   src = fetchurl {
-    url = "http://www.python.org/ftp/python/doc/2.7.18/python-2.7.18-docs-text.tar.bz2";
+    url = "https://www.python.org/ftp/python/doc/2.7.18/python-2.7.18-docs-text.tar.bz2";
     sha256 = "1wj7mxs52kp5lmn5mvv574sygkfnk00kbz9ya9c03yfq5dd5nvy8";
   };
   installPhase = ''
diff --git a/pkgs/development/interpreters/python/cpython/docs/3.10-html.nix b/pkgs/development/interpreters/python/cpython/docs/3.10-html.nix
index c3c3c45c590d..00325c241d6e 100644
--- a/pkgs/development/interpreters/python/cpython/docs/3.10-html.nix
+++ b/pkgs/development/interpreters/python/cpython/docs/3.10-html.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "3.10.7";
 
   src = fetchurl {
-    url = "http://www.python.org/ftp/python/doc/3.10.7/python-3.10.7-docs-html.tar.bz2";
+    url = "https://www.python.org/ftp/python/doc/3.10.7/python-3.10.7-docs-html.tar.bz2";
     sha256 = "0j86z1vmaghzj5i4frvzyfb9qwsmm09g4f4ssx5w27cm30b8k0v1";
   };
   installPhase = ''
diff --git a/pkgs/development/interpreters/python/cpython/docs/3.10-pdf-a4.nix b/pkgs/development/interpreters/python/cpython/docs/3.10-pdf-a4.nix
index 71747e9f0ba7..1c325ec52d8b 100644
--- a/pkgs/development/interpreters/python/cpython/docs/3.10-pdf-a4.nix
+++ b/pkgs/development/interpreters/python/cpython/docs/3.10-pdf-a4.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "3.10.7";
 
   src = fetchurl {
-    url = "http://www.python.org/ftp/python/doc/3.10.7/python-3.10.7-docs-pdf-a4.tar.bz2";
+    url = "https://www.python.org/ftp/python/doc/3.10.7/python-3.10.7-docs-pdf-a4.tar.bz2";
     sha256 = "1gvi457dsj3ywwvxysp7idkk9ndngnby1dnfh1q8f5gv3kg4093r";
   };
   installPhase = ''
diff --git a/pkgs/development/interpreters/python/cpython/docs/3.10-pdf-letter.nix b/pkgs/development/interpreters/python/cpython/docs/3.10-pdf-letter.nix
index 5274cae16fb6..f53f668d27b8 100644
--- a/pkgs/development/interpreters/python/cpython/docs/3.10-pdf-letter.nix
+++ b/pkgs/development/interpreters/python/cpython/docs/3.10-pdf-letter.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "3.10.7";
 
   src = fetchurl {
-    url = "http://www.python.org/ftp/python/doc/3.10.7/python-3.10.7-docs-pdf-letter.tar.bz2";
+    url = "https://www.python.org/ftp/python/doc/3.10.7/python-3.10.7-docs-pdf-letter.tar.bz2";
     sha256 = "0hzq5n6absqsh21jp6j5iaim9a1wq69d8lc2assldzb2zg4i75hr";
   };
   installPhase = ''
diff --git a/pkgs/development/interpreters/python/cpython/docs/3.10-texinfo.nix b/pkgs/development/interpreters/python/cpython/docs/3.10-texinfo.nix
index fba3ae04e9cd..f4997cca57b8 100644
--- a/pkgs/development/interpreters/python/cpython/docs/3.10-texinfo.nix
+++ b/pkgs/development/interpreters/python/cpython/docs/3.10-texinfo.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "3.10.7";
 
   src = fetchurl {
-    url = "http://www.python.org/ftp/python/doc/3.10.7/python-3.10.7-docs-texinfo.tar.bz2";
+    url = "https://www.python.org/ftp/python/doc/3.10.7/python-3.10.7-docs-texinfo.tar.bz2";
     sha256 = "0p0fifi84ijz4ng6krw7c1x965jhgysprkijblmlnax7x9rmqrdf";
   };
   installPhase = ''
diff --git a/pkgs/development/interpreters/python/cpython/docs/3.10-text.nix b/pkgs/development/interpreters/python/cpython/docs/3.10-text.nix
index aab2481674b9..15dcb55dc6e1 100644
--- a/pkgs/development/interpreters/python/cpython/docs/3.10-text.nix
+++ b/pkgs/development/interpreters/python/cpython/docs/3.10-text.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
   version = "3.10.7";
 
   src = fetchurl {
-    url = "http://www.python.org/ftp/python/doc/3.10.7/python-3.10.7-docs-text.tar.bz2";
+    url = "https://www.python.org/ftp/python/doc/3.10.7/python-3.10.7-docs-text.tar.bz2";
     sha256 = "1zbmm2fvdjnl214y41yffyqw3ywfai5r5npc00n1wkfxsdp7gcc3";
   };
   installPhase = ''
diff --git a/pkgs/development/libraries/celt/0.5.1.nix b/pkgs/development/libraries/celt/0.5.1.nix
index ce69981e82e6..b812f1e7067b 100644
--- a/pkgs/development/libraries/celt/0.5.1.nix
+++ b/pkgs/development/libraries/celt/0.5.1.nix
@@ -6,7 +6,7 @@ callPackage ./generic.nix (
     version = "0.5.1.3";
 
     src = fetchurl {
-      url = "http://downloads.xiph.org/releases/celt/celt-${version}.tar.gz";
+      url = "https://downloads.xiph.org/releases/celt/celt-${version}.tar.gz";
       sha256 = "0bkam9z5vnrxpbxkkh9kw6yzjka9di56h11iijikdd1f71l5nbpw";
     };
 
diff --git a/pkgs/development/libraries/celt/0.7.nix b/pkgs/development/libraries/celt/0.7.nix
index 5b17c0b0618e..13a7393645f3 100644
--- a/pkgs/development/libraries/celt/0.7.nix
+++ b/pkgs/development/libraries/celt/0.7.nix
@@ -6,7 +6,7 @@ callPackage ./generic.nix (
     version = "0.7.1";
 
     src = fetchurl {
-      url = "http://downloads.xiph.org/releases/celt/celt-${version}.tar.gz";
+      url = "https://downloads.xiph.org/releases/celt/celt-${version}.tar.gz";
       sha256 = "0rihjgzrqcprsv8a1pmiglwik7xqbs2yw3fwd6gb28chnpgy5w4k";
     };
   }
diff --git a/pkgs/development/libraries/celt/default.nix b/pkgs/development/libraries/celt/default.nix
index 66bafff16584..06b720ef65c8 100644
--- a/pkgs/development/libraries/celt/default.nix
+++ b/pkgs/development/libraries/celt/default.nix
@@ -6,7 +6,7 @@ callPackage ./generic.nix (
     version = "0.11.3";
 
     src = fetchurl {
-      url = "http://downloads.xiph.org/releases/celt/celt-${version}.tar.gz";
+      url = "https://downloads.xiph.org/releases/celt/celt-${version}.tar.gz";
       sha256 = "0dh893wqbh0q4a0x1xyqryykmnhpv7mkblpch019s04a99fq2r3y";
     };
   }
diff --git a/pkgs/development/libraries/librdf/rasqal.nix b/pkgs/development/libraries/librdf/rasqal.nix
index 93f08ec71315..7567a0624310 100644
--- a/pkgs/development/libraries/librdf/rasqal.nix
+++ b/pkgs/development/libraries/librdf/rasqal.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "0.9.33";
 
   src = fetchurl {
-    url = "http://download.librdf.org/source/rasqal-${finalAttrs.version}.tar.gz";
+    url = "https://download.librdf.org/source/rasqal-${finalAttrs.version}.tar.gz";
     sha256 = "0z6rrwn4jsagvarg8d5zf0j352kjgi33py39jqd29gbhcnncj939";
   };
 
diff --git a/pkgs/development/libraries/librdf/redland.nix b/pkgs/development/libraries/librdf/redland.nix
index 9420a6a203ab..fc210c8c4f43 100644
--- a/pkgs/development/libraries/librdf/redland.nix
+++ b/pkgs/development/libraries/librdf/redland.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   version = "1.0.17";
 
   src = fetchurl {
-    url = "http://download.librdf.org/source/redland-${version}.tar.gz";
+    url = "https://download.librdf.org/source/redland-${version}.tar.gz";
     sha256 = "de1847f7b59021c16bdc72abb4d8e2d9187cd6124d69156f3326dd34ee043681";
   };
 
diff --git a/pkgs/development/libraries/libunique/3.x.nix b/pkgs/development/libraries/libunique/3.x.nix
index 56c2db308652..e4aef35d3f17 100644
--- a/pkgs/development/libraries/libunique/3.x.nix
+++ b/pkgs/development/libraries/libunique/3.x.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   srcName = "libunique-${version}";
 
   src = fetchurl {
-    url = "http://ftp.gnome.org/pub/GNOME/sources/libunique/${majorVer}/${srcName}.tar.xz";
+    url = "https://ftp.gnome.org/pub/GNOME/sources/libunique/${majorVer}/${srcName}.tar.xz";
     sha256 = "0f70lkw66v9cj72q0iw1s2546r6bwwcd8idcm3621fg2fgh2rw58";
   };
 
diff --git a/pkgs/development/libraries/physics/hepmc3/default.nix b/pkgs/development/libraries/physics/hepmc3/default.nix
index 2e9a6261560e..ddced644e357 100644
--- a/pkgs/development/libraries/physics/hepmc3/default.nix
+++ b/pkgs/development/libraries/physics/hepmc3/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   version = "3.3.1";
 
   src = fetchurl {
-    url = "http://hepmc.web.cern.ch/hepmc/releases/HepMC3-${version}.tar.gz";
+    url = "https://hepmc.web.cern.ch/hepmc/releases/HepMC3-${version}.tar.gz";
     sha256 = "sha256-CCQBYLDyjcMpOqTWHOZeLWfNWXrPb6ykOfLkZiX355M=";
   };
 
diff --git a/pkgs/development/libraries/speex/default.nix b/pkgs/development/libraries/speex/default.nix
index c5aeae255f15..56ebc63c1f62 100644
--- a/pkgs/development/libraries/speex/default.nix
+++ b/pkgs/development/libraries/speex/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   version = "1.2.1";
 
   src = fetchurl {
-    url = "http://downloads.us.xiph.org/releases/speex/speex-${version}.tar.gz";
+    url = "https://downloads.us.xiph.org/releases/speex/speex-${version}.tar.gz";
     sha256 = "sha256-S0TU8rOKNwotmKeDKf78VqDPk9HBvnACkhe6rmYo/uo=";
   };
 
diff --git a/pkgs/development/lisp-modules/packages.nix b/pkgs/development/lisp-modules/packages.nix
index 0d6a6ac1664d..9de406ee736d 100644
--- a/pkgs/development/lisp-modules/packages.nix
+++ b/pkgs/development/lisp-modules/packages.nix
@@ -246,7 +246,7 @@ let
         pname = "clx-truetype";
         version = "20160825-git";
         src = pkgs.fetchzip {
-          url = "http://beta.quicklisp.org/archive/clx-truetype/2016-08-25/clx-truetype-20160825-git.tgz";
+          url = "https://beta.quicklisp.org/archive/clx-truetype/2016-08-25/clx-truetype-20160825-git.tgz";
           sha256 = "079hyp92cjkdfn6bhkxsrwnibiqbz4y4af6nl31lzw6nm91j5j37";
         };
         lispLibs = with self; [
diff --git a/pkgs/development/misc/msp430/mspds/binary.nix b/pkgs/development/misc/msp430/mspds/binary.nix
index 36f5413e3b6b..8b71fa6c3a14 100644
--- a/pkgs/development/misc/msp430/mspds/binary.nix
+++ b/pkgs/development/misc/msp430/mspds/binary.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation {
   pname = "msp-debug-stack-bin";
   version = "3.15.1.1";
   src = fetchurl {
-    url = "http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPDS/3_15_1_001/export/MSP430_DLL_Developer_Package_Rev_3_15_1_1.zip";
+    url = "https://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPDS/3_15_1_001/export/MSP430_DLL_Developer_Package_Rev_3_15_1_1.zip";
     sha256 = "1m1ssrwbhqvqwbp3m4hnjyxnz3f9d4acz9vl1av3fbnhvxr0d2hb";
   };
   sourceRoot = ".";
diff --git a/pkgs/development/misc/msp430/mspds/default.nix b/pkgs/development/misc/msp430/mspds/default.nix
index da42aa8c9086..553fdec3fd96 100644
--- a/pkgs/development/misc/msp430/mspds/default.nix
+++ b/pkgs/development/misc/msp430/mspds/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
   version = "3.15.1.1";
 
   src = fetchurl {
-    url = "http://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPDS/3_15_1_001/export/MSPDebugStack_OS_Package_3_15_1_1.zip";
+    url = "https://software-dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSPDS/3_15_1_001/export/MSPDebugStack_OS_Package_3_15_1_1.zip";
     sha256 = "1j5sljqwc20zrb50mrji4mnmw5i680qc7n0lb0pakrrxqjc9m9g3";
   };
   sourceRoot = ".";
diff --git a/pkgs/development/ocaml-modules/elina/default.nix b/pkgs/development/ocaml-modules/elina/default.nix
index e6e939746ff9..c194de1debee 100644
--- a/pkgs/development/ocaml-modules/elina/default.nix
+++ b/pkgs/development/ocaml-modules/elina/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   version = "1.1";
   pname = "ocaml${ocaml.version}-elina";
   src = fetchurl {
-    url = "http://files.sri.inf.ethz.ch/elina-${version}.tar.gz";
+    url = "https://files.sri.inf.ethz.ch/elina-${version}.tar.gz";
     sha256 = "1nymykskq1yx87y4xl6hl9i4q6kv0qaq25rniqgl1bfn883p1ysc";
   };
 
diff --git a/pkgs/development/ocaml-modules/hmap/default.nix b/pkgs/development/ocaml-modules/hmap/default.nix
index 7021af3b8f3d..31b5b8d180c8 100644
--- a/pkgs/development/ocaml-modules/hmap/default.nix
+++ b/pkgs/development/ocaml-modules/hmap/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   name = "ocaml${ocaml.version}-${pname}-${version}";
 
   src = fetchurl {
-    url = "http://erratique.ch/software/hmap/releases/${pname}-${version}.tbz";
+    url = "https://erratique.ch/software/hmap/releases/${pname}-${version}.tbz";
     sha256 = "10xyjy4ab87z7jnghy0wnla9wrmazgyhdwhr4hdmxxdn28dxn03a";
   };
 
diff --git a/pkgs/development/ocaml-modules/lutils/default.nix b/pkgs/development/ocaml-modules/lutils/default.nix
index 4efb6d4e2771..318d209a91d1 100644
--- a/pkgs/development/ocaml-modules/lutils/default.nix
+++ b/pkgs/development/ocaml-modules/lutils/default.nix
@@ -13,7 +13,7 @@ buildDunePackage rec {
   minimalOCamlVersion = "4.02";
 
   src = fetchurl {
-    url = "http://www-verimag.imag.fr/DIST-TOOLS/SYNCHRONE/pool/lutils.v${version}.tgz";
+    url = "https://www-verimag.imag.fr/DIST-TOOLS/SYNCHRONE/pool/lutils.v${version}.tgz";
     hash = "sha512:d3c3b80286b1aa236ba922d9e18a133721fc80126c8b89520fb811dce9400e217aaa75b5d49e03988be7f6bf5f2e1a391d02ceeaa5ec0a0cd5ce218083a29514";
   };
 
diff --git a/pkgs/development/ocaml-modules/rdbg/default.nix b/pkgs/development/ocaml-modules/rdbg/default.nix
index 44051a797a56..ba7e71136957 100644
--- a/pkgs/development/ocaml-modules/rdbg/default.nix
+++ b/pkgs/development/ocaml-modules/rdbg/default.nix
@@ -24,7 +24,7 @@ buildDunePackage rec {
       };
 
   src = fetchurl {
-    url = "http://www-verimag.imag.fr/DIST-TOOLS/SYNCHRONE/pool/rdbg.v${version}.tgz";
+    url = "https://www-verimag.imag.fr/DIST-TOOLS/SYNCHRONE/pool/rdbg.v${version}.tgz";
     hash = "sha512:6076eaa3608a313f8ac71a4f5aa4fcc64aeb0c646d581e5035110d4c80f94de34f2ba26f90a9a1e92a7f788c9e799f1f7b0e3728c853a21983ad732f0ee60352";
   };
 
diff --git a/pkgs/development/python-modules/omniorbpy/default.nix b/pkgs/development/python-modules/omniorbpy/default.nix
index 326ccb9a384e..5587f6206f34 100644
--- a/pkgs/development/python-modules/omniorbpy/default.nix
+++ b/pkgs/development/python-modules/omniorbpy/default.nix
@@ -13,7 +13,7 @@ buildPythonPackage rec {
   pyproject = false;
 
   src = fetchurl {
-    url = "http://downloads.sourceforge.net/omniorb/omniORBpy-${version}.tar.bz2";
+    url = "https://downloads.sourceforge.net/omniorb/omniORBpy-${version}.tar.bz2";
     hash = "sha256-y1cX1BKhAbr0MPWYysfWkjGITa5DctjirfPd7rxffrs=";
   };
 
diff --git a/pkgs/development/tcl-modules/by-name/td/tdom/package.nix b/pkgs/development/tcl-modules/by-name/td/tdom/package.nix
index 12d9290417af..e5c74a2a7811 100644
--- a/pkgs/development/tcl-modules/by-name/td/tdom/package.nix
+++ b/pkgs/development/tcl-modules/by-name/td/tdom/package.nix
@@ -12,7 +12,7 @@ mkTclDerivation rec {
   version = "0.9.6";
 
   src = fetchzip {
-    url = "http://tdom.org/downloads/tdom-${version}-src.tgz";
+    url = "https://tdom.org/downloads/tdom-${version}-src.tgz";
     hash = "sha256-zN855tb9JQUtcB7K1DeAjUBrqhoNH44KbeHwp3qewqw=";
   };
 
diff --git a/pkgs/development/tools/ocaml/findlib/default.nix b/pkgs/development/tools/ocaml/findlib/default.nix
index 160ac54df903..6864132d99c3 100644
--- a/pkgs/development/tools/ocaml/findlib/default.nix
+++ b/pkgs/development/tools/ocaml/findlib/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   version = "1.9.8";
 
   src = fetchurl {
-    url = "http://download.camlcity.org/download/findlib-${version}.tar.gz";
+    url = "https://download.camlcity.org/download/findlib-${version}.tar.gz";
     hash = "sha256-ZiyRD3dOn+46GcTgV/OAWBqy/E7lLaR2EwSsnDG4hp0=";
   };
 
diff --git a/pkgs/misc/cups/drivers/cnijfilter_2_80/default.nix b/pkgs/misc/cups/drivers/cnijfilter_2_80/default.nix
index b41494ad90be..4eb454cacdbd 100644
--- a/pkgs/misc/cups/drivers/cnijfilter_2_80/default.nix
+++ b/pkgs/misc/cups/drivers/cnijfilter_2_80/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation {
   version = "2.80";
 
   src = fetchzip {
-    url = "http://gdlp01.c-wss.com/gds/1/0100000841/01/cnijfilter-common-2.80-1.tar.gz";
+    url = "https://gdlp01.c-wss.com/gds/1/0100000841/01/cnijfilter-common-2.80-1.tar.gz";
     sha256 = "06s9nl155yxmx56056y22kz1p5b2sb5fhr3gf4ddlczjkd1xch53";
   };
 
diff --git a/pkgs/misc/cups/drivers/samsung/1.00.37.nix b/pkgs/misc/cups/drivers/samsung/1.00.37.nix
index 18461b8436c1..09a45716973c 100644
--- a/pkgs/misc/cups/drivers/samsung/1.00.37.nix
+++ b/pkgs/misc/cups/drivers/samsung/1.00.37.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   src = fetchurl {
     sha256 = "0r66l9zp0p1qgakh4j08hynwsr4lsgq5yrpxyr0x4ldvl0z2b1bb";
-    url = "http://www.bchemnet.com/suldr/driver/UnifiedLinuxDriver-${finalAttrs.version}.tar.gz";
+    url = "https://www.bchemnet.com/suldr/driver/UnifiedLinuxDriver-${finalAttrs.version}.tar.gz";
   };
 
   buildInputs = [
diff --git a/pkgs/misc/cups/drivers/samsung/4.01.17.nix b/pkgs/misc/cups/drivers/samsung/4.01.17.nix
index c4ddc3a98f8c..1a0144501708 100644
--- a/pkgs/misc/cups/drivers/samsung/4.01.17.nix
+++ b/pkgs/misc/cups/drivers/samsung/4.01.17.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "4.01.17";
 
   src = fetchurl {
-    url = "http://www.bchemnet.com/suldr/driver/UnifiedLinuxDriver-${finalAttrs.version}.tar.gz";
+    url = "https://www.bchemnet.com/suldr/driver/UnifiedLinuxDriver-${finalAttrs.version}.tar.gz";
     sha256 = "1vv3pzvqpg1dq3xjr8161x2yp3v7ca75vil56ranhw5pkjwq66x0";
   };
 
diff --git a/pkgs/os-specific/linux/batman-adv/default.nix b/pkgs/os-specific/linux/batman-adv/default.nix
index 0288be84dd6a..89c7a4dc30f6 100644
--- a/pkgs/os-specific/linux/batman-adv/default.nix
+++ b/pkgs/os-specific/linux/batman-adv/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   version = "${cfg.version}-${kernel.version}";
 
   src = fetchurl {
-    url = "http://downloads.open-mesh.org/batman/releases/${pname}-${cfg.version}/${pname}-${cfg.version}.tar.gz";
+    url = "https://downloads.open-mesh.org/batman/releases/${pname}-${cfg.version}/${pname}-${cfg.version}.tar.gz";
     sha256 = cfg.sha256.${pname};
   };
 
diff --git a/pkgs/tools/typesetting/tex/tetex/default.nix b/pkgs/tools/typesetting/tex/tetex/default.nix
index dd283c8aa0de..b5c09d0a2ccb 100644
--- a/pkgs/tools/typesetting/tex/tetex/default.nix
+++ b/pkgs/tools/typesetting/tex/tetex/default.nix
@@ -16,12 +16,12 @@ stdenv.mkDerivation rec {
   version = "3.0";
 
   src = fetchurl {
-    url = "http://mirrors.ctan.org/obsolete/systems/unix/teTeX/${version}/distrib/tetex-src-${version}.tar.gz";
+    url = "https://mirrors.ctan.org/obsolete/systems/unix/teTeX/${version}/distrib/tetex-src-${version}.tar.gz";
     sha256 = "16v44465ipd9yyqri9rgxp6rbgs194k4sh1kckvccvdsnnp7w3ww";
   };
 
   texmf = fetchurl {
-    url = "http://mirrors.ctan.org/obsolete/systems/unix/teTeX/${version}/distrib/tetex-texmf-${version}.tar.gz";
+    url = "https://mirrors.ctan.org/obsolete/systems/unix/teTeX/${version}/distrib/tetex-texmf-${version}.tar.gz";
     sha256 = "1hj06qvm02a2hx1a67igp45kxlbkczjlg20gr8lbp73l36k8yfvc";
   };