diff --git a/plugins/lucky_pot/main.py b/plugins/lucky_pot/main.py
index 3f29d83..619a458 100644
--- a/plugins/lucky_pot/main.py
+++ b/plugins/lucky_pot/main.py
@@ -16,6 +16,7 @@ from db.connection import DBConnectionManager
 from db.points_db import PointsDBOperator, PointSource
 from utils.decorator.plugin_decorators import plugin_stats_decorator
 from utils.robot_cmd.robot_command import Feature, PermissionStatus
+from utils.wechat.contact_manager import ContactManager
 
 
 class LuckyPotRoom:
@@ -249,7 +250,7 @@ class LuckyPotPlugin(MessagePluginInterface):
         )
 
         # 创建者自动加入房间
-        nickname = self._get_nickname(message, sender)
+        nickname = ContactManager.get_instance().get_group_name(room_id, sender) or sender
         room.add_player(sender, nickname)
 
         # 扣除创建者积分
@@ -357,7 +358,7 @@ class LuckyPotPlugin(MessagePluginInterface):
             return True, "扣除积分失败"
 
         # 获取用户昵称
-        nickname = self._get_nickname(message, sender)
+        nickname = ContactManager.get_instance().get_group_name(roomid, sender) or sender
 
         # 添加用户到房间
         room.add_player(sender, nickname)
@@ -676,10 +677,3 @@ class LuckyPotPlugin(MessagePluginInterface):
                 message += f"{emoji} {player_name}: {reward} 积分 ({profit_text})\n"
 
         return message
-
-    def _get_nickname(self, message: Dict[str, Any], user_id: str) -> str:
-        """获取用户昵称"""
-        all_contacts = message.get("all_contacts", {})
-        if user_id in all_contacts:
-            return all_contacts[user_id].get("nickname", user_id)
-        return user_id