diff --git a/modules/version.nix b/modules/version.nix
index e2743ef..922de0e 100644
--- a/modules/version.nix
+++ b/modules/version.nix
@@ -11,7 +11,7 @@ with lib;
   options = {
 
     system.stateVersion = mkOption {
-      type = types.enum [ "19.09" "20.03" ];
+      type = types.enum [ "19.09" "20.03" "20.09" ];
       default = "19.09";
       description = ''
         It is occasionally necessary for nix-on-droid to change