diff --git a/flake.nix b/flake.nix
index 2dd1588..af472ef 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,7 +3,8 @@
 
   # https://github.com/nix-community/nixos-images/pull/123
   inputs.nixos-unstable.url = "github:Mic92/nixpkgs/netboot-fix";
-  inputs.nixos-2305.url = "github:NixOS/nixpkgs/release-23.05";
+  # https://github.com/NixOS/nixpkgs/pull/247279
+  inputs.nixos-2305.url = "github:Mic92/nixpkgs/netboot-fix-backport";
 
   nixConfig.extra-substituters = [
     "https://cache.garnix.io"