diff --git a/configuration.nix b/configuration.nix
index f1b0fad..13f39bc 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -85,6 +85,9 @@
     # Enable CUPS
     services.printing.enable = true;
 
+    # system stateVersion
+    system.stateVersion = "22.05";
+
     # System 
     system.autoUpgrade.enable = true;
     system.autoUpgrade.allowReboot = true;