diff --git a/flake.nix b/flake.nix
index db9960af..de73864c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -154,6 +154,7 @@
               inputsFrom = [ pkgs.rosenpass ];
               nativeBuildInputs = with pkgs; [
                 cargo-audit
+                cargo-deny
                 cargo-msrv
                 cargo-release
                 cargo-vet