diff --git a/flake.nix b/flake.nix
index 15da3fa..c4c5e33 100644
--- a/flake.nix
+++ b/flake.nix
@@ -27,16 +27,11 @@
   }@inputs: {
     nixosModules.beatific = import ./modules/beatific.nix;
 
-    nixosConfigurations = let
-      pinNixpkgs = nixpkgs: { ... }: {
-        nix.registry.nixpkgs.to = { type = "path"; path = nixpkgs; };
-      };
-    in {
-      backyard = nixpkgs-2311.lib.nixosSystem {
+    nixosConfigurations = {
+      backyard = nixpkgs-2405.lib.nixosSystem {
         system = "x86_64-linux";
         modules = [
           self.nixosModules.beatific
-          (pinNixpkgs nixpkgs-2311)
           ./machine/backyard
         ];
       };