diff --git a/continew-admin-system/src/main/resources/mapper/UserPasswordHistoryMapper.xml b/continew-admin-system/src/main/resources/mapper/UserPasswordHistoryMapper.xml
index 0ee5e385..283b6d11 100644
--- a/continew-admin-system/src/main/resources/mapper/UserPasswordHistoryMapper.xml
+++ b/continew-admin-system/src/main/resources/mapper/UserPasswordHistoryMapper.xml
@@ -2,15 +2,14 @@
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 <mapper namespace="top.continew.admin.system.mapper.UserPasswordHistoryMapper">
     <delete id="deleteExpired">
-        DELETE FROM sys_user_password_history
-        WHERE id NOT IN (
-            SELECT * FROM (
-                SELECT id
-                FROM sys_user_password_history
-                WHERE user_id = #{userId}
-                ORDER BY create_time DESC
-                LIMIT #{count}
-            ) t1
-        )
+        DELETE t1 FROM sys_user_password_history t1
+        LEFT JOIN (
+            SELECT id
+            FROM sys_user_password_history
+            WHERE user_id = #{userId}
+            ORDER BY create_time DESC
+            LIMIT #{count}
+        ) t2 ON t2.id = t1.id
+        WHERE t2.id IS NULL
     </delete>
 </mapper>
\ No newline at end of file