diff --git a/pkgs/development/libraries/physics/apfelgrid/default.nix b/pkgs/development/libraries/physics/apfelgrid/default.nix
index 33ca03267270..92b6ae003fca 100644
--- a/pkgs/development/libraries/physics/apfelgrid/default.nix
+++ b/pkgs/development/libraries/physics/apfelgrid/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "Ultra-fast theory predictions for collider observables";
     license     = licenses.mit;
-    homepage    = "http://nhartland.github.io/APFELgrid/";
+    homepage    = "https://nhartland.github.io/APFELgrid/";
     platforms   = platforms.unix;
     maintainers = with maintainers; [ veprbl ];
   };