diff --git a/ruoyi-system/src/main/resources/mapper/system/SysUserMapper.xml b/ruoyi-system/src/main/resources/mapper/system/SysUserMapper.xml
index 756443f..0f56dab 100644
--- a/ruoyi-system/src/main/resources/mapper/system/SysUserMapper.xml
+++ b/ruoyi-system/src/main/resources/mapper/system/SysUserMapper.xml
@@ -108,7 +108,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 			AND u.create_time <= #{params.endTime}
 		</if>
 		<if test="deptId != null and deptId != 0">
-			AND (u.dept_id = #{deptId} OR u.dept_id IN ( SELECT t.dept_id FROM sys_dept t WHERE FIND_IN_SET (#{deptId},ancestors) ))
+			AND (u.dept_id = #{deptId} OR u.dept_id IN ( SELECT t.dept_id FROM sys_dept t WHERE CAST(#{deptId} AS text) = ANY(string_to_array(ancestors, ','))))
 		</if>
 		<!-- 数据范围过滤 -->
 		${params.dataScope}