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=";
   };