diff --git a/pkgs/default.nix b/pkgs/default.nix
index 5df26b2..704888f 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -3,7 +3,7 @@ final: prev: {
   sources = prev.callPackage (import ./_sources/generated.nix) { };
   # then, call packages with `final.callPackage`
 
-  olympus = prev.callPackage ./olympus.nix { };
+  olympus = final.callPackage ./olympus.nix { };
 
-  frei = prev.callPackage ./frei.nix { source = final.sources.frei; };
+  frei = final.callPackage ./frei.nix { source = final.sources.frei; };
 }