diff --git a/machines/b4l/configuration.nix b/machines/b4l/configuration.nix
index 91ee447..190a1d6 100644
--- a/machines/b4l/configuration.nix
+++ b/machines/b4l/configuration.nix
@@ -9,5 +9,6 @@
   fileSystems = {
     "/".device = "/dev/changeme";
   };
+  system.stateVersion = "25.11";
 
 }