diff --git a/laptop/flake.nix b/laptop/flake.nix
index 51ffa252..254dfa3b 100644
--- a/laptop/flake.nix
+++ b/laptop/flake.nix
@@ -1,4 +1,9 @@
 {
+
+  inputs = {
+    nixpngs.url = "github:nixos/nixpgs/nixos-23.05"
+  };
+
   outputs = { self, nixpkgs }: {
     # replace 'joes-desktop' with your hostname here.
     nixosConfigurations.nixos-p1 = nixpkgs.lib.nixosSystem {