diff --git a/nix/pkgs/authentik/pythonapp/default.nix b/nix/pkgs/authentik/pythonapp/default.nix
index efbfd13ebf..498d2165c6 100644
--- a/nix/pkgs/authentik/pythonapp/default.nix
+++ b/nix/pkgs/authentik/pythonapp/default.nix
@@ -56,7 +56,7 @@ let
       urllib3-secure-extra = super.urllib3-secure-extra.overridePythonAttrs (old: {
         nativeBuildInputs = old.nativeBuildInputs ++ [ self.flit-core ];
       });
-      watchfiles = self.callPackage "${pkgs.path}/pkgs/development/python-modules/watchfiles/default.nix" {};
+      watchfiles = self.callPackage ../../../../third_party/nixpkgs/pkgs/development/python-modules/watchfiles/default.nix { CoreServices = null; };
       selenium = null;
     });