diff --git a/default.nix b/default.nix
index 47e047c..e11c87d 100644
--- a/default.nix
+++ b/default.nix
@@ -5,7 +5,7 @@ let
       owner = "NixOS";
       repo = "nixpkgs";
       rev = "45c9736ed69800a6ff2164fb4538c9e40dad25d6";
-      hash = "0000000000000000000000000000000000000000000000000000";
+      hash = "sha256:0000000000000000000000000000000000000000000000000000";
     };
   in import pinnedPkgs {};
 in