diff --git a/src/main/resources/mapper/StorePromotionDataDOMapper.xml b/src/main/resources/mapper/StorePromotionDataDOMapper.xml
index b3032e7..4113bbe 100644
--- a/src/main/resources/mapper/StorePromotionDataDOMapper.xml
+++ b/src/main/resources/mapper/StorePromotionDataDOMapper.xml
@@ -402,8 +402,7 @@
         ( SELECT @rank := 0 ) b
     </select>
     <select id="selectLatestUpdateTime" resultType="java.util.Date">
-        select max(create_time) from op_seller_customer_relation where store_id = #{storeId}
-        order by create_time desc
+        select max(update_time) from op_seller_customer_relation where store_id = #{storeId}
     </select>