diff --git a/flake.nix b/flake.nix
index 9ce1601..996b02e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -17,9 +17,6 @@
       ];
       systems = ["x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin"];
       perSystem = {
-        config,
-        self',
-        inputs',
         pkgs,
         system,
         ...
@@ -28,9 +25,9 @@
           inherit system;
           overlays = [
             (_final: prev: {
-              nuget-to-json = prev.nuget-to-json.overrideAttrs (old: {
+              nuget-to-json = prev.nuget-to-json.overrideAttrs {
                 src = ./nuget-to-json.sh;
-              });
+              };
             })
           ];
           config = {};