diff --git a/message_sign/main.py b/message_sign/main.py
index e8eca94..7362c2e 100644
--- a/message_sign/main.py
+++ b/message_sign/main.py
@@ -56,9 +56,9 @@ class SignInSystem:
         with self._get_redis_connection() as redis_client:
             last_reset_date_str = redis_client.get('group:sign_in:last_reset_date')
             if last_reset_date_str:
-                self.last_reset_date = datetime.datetime.strptime(last_reset_date_str, '%Y-%m-%d').date()
+                self.last_reset_date = datetime.strptime(last_reset_date_str, '%Y-%m-%d').date()
             else:
-                self.last_reset_date = datetime.datetime.now(tz=pytz.timezone(self.timezone)).date()
+                self.last_reset_date = datetime.now(tz=pytz.timezone(self.timezone)).date()
                 self._save_last_reset_date_to_redis()
 
         self.LOG.info(f"[签到] 组件初始化完成 {self.command_format}")
@@ -112,7 +112,7 @@ class SignInSystem:
 
     def reset_today_count_if_needed(self):
         """检查并重置每日签到计数"""
-        current_date = datetime.datetime.now(tz=pytz.timezone(self.timezone)).date()
+        current_date = datetime.now(tz=pytz.timezone(self.timezone)).date()
         if current_date != self.last_reset_date:
             self.today_signin_count.clear()
             with self._get_redis_connection() as redis_client: