diff --git a/modules/base/nix/default.nix b/modules/base/nix/default.nix
index acc9a74d..2ff38091 100644
--- a/modules/base/nix/default.nix
+++ b/modules/base/nix/default.nix
@@ -104,7 +104,7 @@ in
     nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) config.chvp.base.nix.unfreePackages;
     nixpkgs.overlays = [
       (self: super: {
-        nix = super.nixUnstable;
+        nix = super.nix_2_4;
       })
     ];