diff --git a/overlays/overrides.nix b/overlays/overrides.nix
index c43a6c0a..0e6f5896 100644
--- a/overlays/overrides.nix
+++ b/overlays/overrides.nix
@@ -28,7 +28,7 @@ channels: final: prev: {
     ;
 
   # nix is set to 2.3 in 21.11
-  nix-direnv = prev.nix-direnv.override { nix = prev.nixUnstable; };
+  nix-direnv = prev.nix-direnv.override { nix_2_4 = true; };
 
   haskellPackages = prev.haskellPackages.override
     (old: {