diff --git a/extra/nix.nix b/extra/nix.nix
index 67a5768..2bf59bf 100644
--- a/extra/nix.nix
+++ b/extra/nix.nix
@@ -3,6 +3,7 @@
   environment.systemPackages = with pkgs; [
     nix-prefetch-git
     nix-prefetch-github
+    nix-update
     nixpkgs-fmt
     nixpkgs-lint
     nixpkgs-review