diff --git a/app/Model/UserThird.php b/app/Model/UserThird.php
index 5b766f5..1ed422a 100644
--- a/app/Model/UserThird.php
+++ b/app/Model/UserThird.php
@@ -32,8 +32,8 @@ class UserThird extends Model
      */
     protected array $casts = ['id' => 'integer', 'user_id' => 'integer', 'type' => 'integer'];
 
-    const CREATED_AT = false;
-    const UPDATED_AT = false;
+    const CREATED_AT = null;
+    const UPDATED_AT = null;
 
     /**
      * @param string $openId