diff --git a/group_auto/group_member_change.py b/group_auto/group_member_change.py
index 24f32d7..c2236dd 100644
--- a/group_auto/group_member_change.py
+++ b/group_auto/group_member_change.py
@@ -48,6 +48,7 @@ class GroupMemberChange:
                 print("First time processing, saving current data to Redis")
                 members_current = self.get_current_members(group_id)
                 self.r.set(f"group:group_member_count:{group_id}", membercount_current)
+                self.r.delete(f"group:group_members:{group_id}")
                 self.r.hset(f"group:group_members:{group_id}", mapping=members_current)  # 存储当前成员信息
 
                 # 更新本地缓存
@@ -97,6 +98,7 @@ class GroupMemberChange:
             print(f"Updating Redis with current membercount and members")
             self.r.set(f"group:group_member_count:{group_id}", membercount_current)
 
+            self.r.delete(f"group:group_members:{group_id}")
             # 更新 Redis 中的成员信息，确保在成员变化时也更新
             self.r.hset(f"group:group_members:{group_id}", mapping=members_current)