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=";
   };