diff --git a/archachatina.nix b/archachatina.nix
index 0f7551a..debf789 100644
--- a/archachatina.nix
+++ b/archachatina.nix
@@ -125,4 +125,6 @@
 
   system.stateVersion = "18.03";
 
+  nix.package = pkgs.nixUnstable;
+
 }