diff --git a/jobsets.nix b/jobsets.nix
index 2faeafd..25ebfd6 100644
--- a/jobsets.nix
+++ b/jobsets.nix
@@ -115,6 +115,7 @@ let
       nixexprpath = "hail.nix";
       gitUrls = {
         nix-config = "https://gitea.c3d2.de/C3D2/nix-config.git";
+        nixpkgs = "https://github.com/nixos/nixpkgs.git";
       };
     };
   };