diff --git a/README.md b/README.md
index a377c77..c458344 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 
 
 # 更新日志
->**2023.02.20：** 支持 [python-wechaty](https://github.com/wechaty/python-wechaty) Pad协议相对稳定，不易封号，但Token收费，可申请七天体验Token
+>**2023.02.20：** 增加 [python-wechaty](https://github.com/wechaty/python-wechaty) 支持，Pad协议相对稳定，不易封号，但Token收费，可申请七天体验Token (使用参考[#244](https://github.com/zhayujie/chatgpt-on-wechat/pull/244)，contributed by [ZQ7](https://github.com/ZQ7))
 
 >**2023.02.09：** 扫码登录存在封号风险，请谨慎使用，参考[#58](https://github.com/AutumnWhj/ChatGPT-wechat-bot/issues/158)
 
diff --git a/channel/channel_factory.py b/channel/channel_factory.py
index 95d3c67..bfeaacf 100644
--- a/channel/channel_factory.py
+++ b/channel/channel_factory.py
@@ -2,10 +2,6 @@
 channel factory
 """
 
-from channel.wechat.wechat_channel import WechatChannel
-from channel.wechat.wechaty_channel import WechatyChannel
-
-
 def create_channel(channel_type):
     """
     create a channel instance
@@ -13,7 +9,9 @@ def create_channel(channel_type):
     :return: channel instance
     """
     if channel_type == 'wx':
+        from channel.wechat.wechat_channel import WechatChannel
         return WechatChannel()
     elif channel_type == 'wxy':
+        from channel.wechat.wechaty_channel import WechatyChannel
         return WechatyChannel()
     raise RuntimeError