diff --git a/hosts/fw.cloonar.com/modules/unbound.nix b/hosts/fw.cloonar.com/modules/unbound.nix
index 0f9a5d8..6981bd3 100644
--- a/hosts/fw.cloonar.com/modules/unbound.nix
+++ b/hosts/fw.cloonar.com/modules/unbound.nix
@@ -175,6 +175,7 @@ in {
         enable = true;
         settings = cfg;
       };
+      system.stateVersion = "23.05";
     };
   };
 }