diff --git a/nix-os/services/nix-binary-cache.nix b/nix-os/services/nix-binary-cache.nix
index aaff003..923b0bc 100644
--- a/nix-os/services/nix-binary-cache.nix
+++ b/nix-os/services/nix-binary-cache.nix
@@ -1,7 +1,10 @@
+{ pkgs, ... }:
+
 {
   config = {
     services.nix-serve = {
       enable = true;
+      package = pkgs.nix-serve-ng;
       secretKeyFile = "/var/cache-priv-key.pem";
     };
   };