diff --git a/flake.nix b/flake.nix
index fb6f8a3..d32591c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -129,6 +129,7 @@
       # Real systems
       nixosConfigurations = {
         levitation = makeNixosSystem {
+          ourNixpkgs = nixpkgs-unstable;
           system = "x86_64-linux";
           hostName = "levitation";
           extraModules = [