diff --git a/README.md b/README.md
index 03a058f..6c2257e 100644
--- a/README.md
+++ b/README.md
@@ -386,10 +386,8 @@ You just need input your config like below config. Official Accounts authorizati
 
             // Open Platform - Third-party Platform Need
             'component' => [
-                // or 'app_id', 'component_app_id' as key
                 'id' => 'component-app-id',
-                // or 'app_token', 'access_token', 'component_access_token' as key
-                'token' => 'component-access-token',
+                'token' => 'component-access-token', // or Using a callable as value.
             ]
         ]
 ],
diff --git a/src/Providers/WeChat.php b/src/Providers/WeChat.php
index fd9ae78..b8df506 100644
--- a/src/Providers/WeChat.php
+++ b/src/Providers/WeChat.php
@@ -214,6 +214,10 @@ protected function prepareForComponent()
         $component = $this->getConfig()->get('component');
 
         foreach ($component as $key => $value) {
+            if (\is_callable($value)) {
+                $value = \call_user_func($value, $this);
+            }
+
             switch ($key) {
                 case 'id':
                 case 'app_id':