diff --git a/modules/User/Http/Controllers/UserController.php b/modules/User/Http/Controllers/UserController.php
index bc19287..b4582b9 100644
--- a/modules/User/Http/Controllers/UserController.php
+++ b/modules/User/Http/Controllers/UserController.php
@@ -27,7 +27,13 @@ class UserController extends Controller
      */
     public function index()
     {
-        return $this->user->getList();
+        return $this->user->setBeforeGetList(function ($query){
+            if (! $this->getLoginUser()->isSuperAdmin()) {
+                return $query->where('id', '<>', config('catch.super_admin'));
+            }
+
+            return $query;
+        })->getList();
     }
 
     /**
diff --git a/modules/User/Models/User.php b/modules/User/Models/User.php
index 1b626a6..509022b 100644
--- a/modules/User/Models/User.php
+++ b/modules/User/Models/User.php
@@ -70,6 +70,13 @@ class User extends Model implements AuthenticatableContract
         );
     }
 
+    protected function DepartmentId(): Attribute
+    {
+        return new Attribute(
+            get: fn($value) => $value ? : null
+        );
+    }
+
     /**
      * is super admin
      *
@@ -91,7 +98,7 @@ class User extends Model implements AuthenticatableContract
         if (isset($data['password']) && ! $data['password']) {
             unset($data['password']);
         }
-        
+
         return parent::updateBy($id, $data);
     }
 }