diff --git a/src/main/resources/mapper/ModelCaseMapper.xml b/src/main/resources/mapper/ModelCaseMapper.xml
index da0fc2f..ab5f2af 100644
--- a/src/main/resources/mapper/ModelCaseMapper.xml
+++ b/src/main/resources/mapper/ModelCaseMapper.xml
@@ -31,6 +31,7 @@
         <if test="modelCase.updateEndTime != null">
             and DATE_FORMAT(update_time, '%Y-%m-%d') &lt;= DATE_FORMAT(#{modelCase.updateEndTime}, '%Y-%m-%d')
         </if>
+        order by index_num desc
     </select>
     <select id="selectMaxIndex" resultType="java.lang.Integer">
         select ifnull(max(index_num), 0)