diff --git a/ruoyi-system/src/main/resources/mapper/system/SysUserOnlineMapper.xml b/ruoyi-system/src/main/resources/mapper/system/SysUserOnlineMapper.xml
index 52086bd..42b6162 100644
--- a/ruoyi-system/src/main/resources/mapper/system/SysUserOnlineMapper.xml
+++ b/ruoyi-system/src/main/resources/mapper/system/SysUserOnlineMapper.xml
@@ -68,7 +68,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 	
 	<select id="selectOnlineByExpired" parameterType="String" resultMap="SysUserOnlineResult">
 		<include refid="selectOnlineVo"/> o 
-		WHERE o.last_access_time <![CDATA[ <= ]]> #{lastAccessTime} ORDER BY o.last_access_time ASC
+		WHERE o.last_access_time &lt;=  CAST(#{lastAccessTime} AS TIMESTAMP)  ORDER BY o.last_access_time ASC
 	</select>
 
 </mapper> 
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