diff --git a/ERD-Laravel-Guardian.png b/ERD-Laravel-Guardian.png
new file mode 100644
index 0000000..59f9157
Binary files /dev/null and b/ERD-Laravel-Guardian.png differ
diff --git a/composer.json b/composer.json
index 747fd37..06713f1 100644
--- a/composer.json
+++ b/composer.json
@@ -18,6 +18,10 @@
             "email": "dinhcuongngo@gmail.com"
         }
     ],
+    "require": {
+        "php": "^7.2.5|^8.0",
+        "cuongnd88/lara-query-kit": "^1.2"
+    },
     "autoload": {
         "psr-4": {
             "Cuongnd88\\LaraGuardian\\": "src/"
diff --git a/src/Guardian/Traits/QueryKit.php b/src/Guardian/Traits/QueryKit.php
deleted file mode 100644
index c6bb69d..0000000
--- a/src/Guardian/Traits/QueryKit.php
+++ /dev/null
@@ -1,79 +0,0 @@
-<?php
-
-namespace App\Guardian\Traits;
-
-use Illuminate\Support\Facades\DB;
-
-trait QueryKit
-{
-    /**
-     * Insert new rows or update existed rows
-     *
-     * @param array $data
-     * @param array $insertKeys
-     * @param array $updateKeys
-     *
-     * @return void
-     */
-    public static function insertDuplicate(array $data, array $insertKeys, array $updateKeys)
-    {
-        $model = new static;
-        $query = "INSERT INTO {$model->getTable()} __INSERTKEYS__ VALUES __INSERTVALUE__ ON DUPLICATE KEY UPDATE __UPDATEVALUES__";
-        $tmpInKeys = array_fill_keys($insertKeys, null);
-        $tmpUpKeys = array_fill_keys($updateKeys, null);
-
-        try {
-            DB::beginTransaction();
-            foreach ($data as $item) {
-                $insertValue = array_intersect_key($item, $tmpInKeys);
-
-                $updateValue = implode(', ', array_map(
-                    function ($v, $k) { return sprintf("`%s`='%s'", $k, $v); },
-                    array_intersect_key($item, $tmpUpKeys),
-                    $updateKeys
-                ));
-
-                $statement = str_replace(
-                    ['__INSERTKEYS__', '__INSERTVALUE__', '__UPDATEVALUES__'],
-                    ["(`" . implode("`,`", $insertKeys) . "`)", "('" . implode("','", $insertValue) . "')", $updateValue],
-                    $query
-                );
-                DB::statement($statement);
-            }
-            DB::commit();
-        } catch (\Exception $e) {
-            DB::rollBack();
-            report($e);
-            throw new \Exception($e->getMessage());
-        }
-    }
-
-    /**
-     * Get the array of columns
-     *
-     * @return mixed
-     */
-    public function getTableColumns() {
-        return $this->getConnection()->getSchemaBuilder()->getColumnListing($this->getTable());
-    }
-
-    /**
-     * Retrieve a subset of the output data
-     *
-     * @param mixed $query
-     * @param array $columns
-     *
-     * @return mixed
-     */
-    public function scopeExcept($query, array $columns = [])
-    {
-        $select = ['*'];
-        if ($columns && empty($this->except)) {
-            $select = array_diff($this->getTableColumns(), $columns);
-        }
-        if ($this->except && empty($columns)) {
-            $select = array_diff($this->getTableColumns(), $this->except);
-        }
-        return $query->select($select);
-    }
-}
diff --git a/src/Models/Action.php b/src/Models/Action.php
index 2703a30..b767521 100644
--- a/src/Models/Action.php
+++ b/src/Models/Action.php
@@ -4,7 +4,7 @@
 
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\SoftDeletes;
-use App\Guardian\Traits\QueryKit;
+use App\Traits\QueryKit;
 
 class Action extends Model
 {
diff --git a/src/Models/Group.php b/src/Models/Group.php
index 321e656..08f991d 100644
--- a/src/Models/Group.php
+++ b/src/Models/Group.php
@@ -4,7 +4,7 @@
 
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\SoftDeletes;
-use App\Guardian\Traits\QueryKit;
+use App\Traits\QueryKit;
 
 class Group extends Model
 {
diff --git a/src/Models/Page.php b/src/Models/Page.php
index 764e77e..1a8bf7f 100644
--- a/src/Models/Page.php
+++ b/src/Models/Page.php
@@ -4,7 +4,7 @@
 
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\SoftDeletes;
-use App\Guardian\Traits\QueryKit;
+use App\Traits\QueryKit;
 
 class Page extends Model
 {