diff --git a/plugins/group_member_change/main.py b/plugins/group_member_change/main.py
index 458cff9..c9e6d4c 100644
--- a/plugins/group_member_change/main.py
+++ b/plugins/group_member_change/main.py
@@ -53,7 +53,6 @@ class GroupMemberChangePlugin(MessagePluginInterface):
         # 保存上下文对象
         self.wcf: Wcf = context.get("wcf")
         # 获取群管理器
-        self.gbm = context.get("gbm")
 
         # 从配置中获取启用状态和检查间隔
         plugin_config = self._config.get("GroupMemberChange", {})
@@ -105,11 +104,12 @@ class GroupMemberChangePlugin(MessagePluginInterface):
         while not self.stop_flag:
             try:
                 # 获取所有启用了机器人的群组
-                group_list = self.gbm.get_group_list()
+                group_list = GroupBotManager.get_group_list()
 
                 for group_id in group_list:
                     # 检查群是否启用了成员变更提醒功能
-                    if self.gbm.get_group_permission(group_id, Feature.GROUP_MEMBER_CHANGE) == PermissionStatus.ENABLED:
+                    if GroupBotManager.get_group_permission(group_id,
+                                                            Feature.GROUP_MEMBER_CHANGE) == PermissionStatus.ENABLED:
                         self._check_group_members(group_id)
 
                 # 等待指定的时间间隔