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";
   };