diff --git a/pkgs/development/compilers/elm/packages/elm-instrument.nix b/pkgs/development/compilers/elm/packages/elm-instrument.nix
index 54077994fbdd..4d7efcf1083b 100644
--- a/pkgs/development/compilers/elm/packages/elm-instrument.nix
+++ b/pkgs/development/compilers/elm/packages/elm-instrument.nix
@@ -28,7 +28,7 @@ mkDerivation {
     quickcheck-io split tasty tasty-golden tasty-hunit tasty-quickcheck
     text
   ];
-  homepage = "http://elm-lang.org";
+  homepage = "https://elm-lang.org";
   description = "Instrumentation library for Elm";
   license = stdenv.lib.licenses.bsd3;
 }