diff --git a/machines/universeair/configuration.nix b/machines/universeair/configuration.nix
index a59371d..918ece8 100644
--- a/machines/universeair/configuration.nix
+++ b/machines/universeair/configuration.nix
@@ -13,7 +13,7 @@ in
     nixpkgs.config.allowUnfree = true;
     # Auto upgrade nix package and the daemon service.
     services.nix-daemon.enable = true;
-    nix.package = pkgs.nixUnstable;
+    # nix.package = pkgs.nixUnstable;
     nix.settings.auto-optimise-store = false;
 
     users.users.universelaptop = {