diff --git a/nix/key/flake.nix b/nix/key/flake.nix
index 3405fe7..406264b 100644
--- a/nix/key/flake.nix
+++ b/nix/key/flake.nix
@@ -3,5 +3,7 @@
 
   outputs = { ... }: {
     lib.gpgKey = null;
+    # test key
+    lib.dyndnsKey = "Dr1QHSfNtAwgbdoNBtCgl5NxsSXlaw9+qo7juiVTv58=";
   };
 }