diff --git a/channel/dingtalk/dingtalk_channel.py b/channel/dingtalk/dingtalk_channel.py
index 9128d95..6c99e5f 100644
--- a/channel/dingtalk/dingtalk_channel.py
+++ b/channel/dingtalk/dingtalk_channel.py
@@ -100,7 +100,7 @@ class DingTalkChanel(ChatChannel, dingtalk_stream.ChatbotHandler):
         super(dingtalk_stream.ChatbotHandler, self).__init__()
         self.logger = self.setup_logger()
         # 历史消息id暂存，用于幂等控制
-        self.receivedMsgs = ExpiredDict(conf().get("expires_in_seconds"))
+        self.receivedMsgs = ExpiredDict(conf().get("expires_in_seconds", 3600))
         logger.info("[DingTalk] client_id={}, client_secret={} ".format(
             self.dingtalk_client_id, self.dingtalk_client_secret))
         # 无需群校验和前缀
diff --git a/channel/wechat/wechat_channel.py b/channel/wechat/wechat_channel.py
index 870b487..414f9bb 100644
--- a/channel/wechat/wechat_channel.py
+++ b/channel/wechat/wechat_channel.py
@@ -109,7 +109,7 @@ class WechatChannel(ChatChannel):
 
     def __init__(self):
         super().__init__()
-        self.receivedMsgs = ExpiredDict(conf().get("expires_in_seconds"))
+        self.receivedMsgs = ExpiredDict(conf().get("expires_in_seconds", 3600))
         self.auto_login_times = 0
 
     def startup(self):