diff --git a/im-center-server/src/main/java/cn/axzo/im/dao/mapper/GroupMapperMapper.java b/im-center-server/src/main/java/cn/axzo/im/dao/mapper/GroupMapperMapper.java
index 61477c6..c7293f4 100644
--- a/im-center-server/src/main/java/cn/axzo/im/dao/mapper/GroupMapperMapper.java
+++ b/im-center-server/src/main/java/cn/axzo/im/dao/mapper/GroupMapperMapper.java
@@ -2,9 +2,15 @@ package cn.axzo.im.dao.mapper;
 
 import cn.axzo.im.entity.GroupMember;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Delete;
+import org.apache.ibatis.annotations.Param;
 
 /**
  * @author yanglin
  */
 public interface GroupMapperMapper extends BaseMapper<GroupMember> {
+
+    @Delete("DELETE FROM im_group_member WHERE tid = #{tid}")
+    void deleteAccounts(@Param("tid") Long tid);
+
 }
diff --git a/im-center-server/src/main/java/cn/axzo/im/dao/repository/GroupMemberDao.java b/im-center-server/src/main/java/cn/axzo/im/dao/repository/GroupMemberDao.java
index 4042ceb..c9b70ce 100644
--- a/im-center-server/src/main/java/cn/axzo/im/dao/repository/GroupMemberDao.java
+++ b/im-center-server/src/main/java/cn/axzo/im/dao/repository/GroupMemberDao.java
@@ -21,9 +21,7 @@ import static java.util.stream.Collectors.toSet;
 public class GroupMemberDao extends ServiceImpl<GroupMapperMapper, GroupMember> {
 
     public void deleteAccounts(Long tid) {
-        lambdaUpdate()
-                .eq(GroupMember::getTid, tid)
-                .remove();
+        getBaseMapper().deleteAccounts(tid);
     }
 
     public Set<PersonAccountAttribute> getGroupPersons(Long tid) {