diff --git a/application/model/AdminGroup.php b/application/model/AdminGroup.php
index 59789f0..2dbc46f 100644
--- a/application/model/AdminGroup.php
+++ b/application/model/AdminGroup.php
@@ -9,5 +9,5 @@ namespace app\model;
 
 
 class AdminGroup extends Base {
-
+    protected $autoWriteTimestamp = true;
 }