diff --git a/src/main/resources/mappers/business/backstage/PurchaseMapper.xml b/src/main/resources/mappers/business/backstage/PurchaseMapper.xml
index 58a9262..e81fe96 100644
--- a/src/main/resources/mappers/business/backstage/PurchaseMapper.xml
+++ b/src/main/resources/mappers/business/backstage/PurchaseMapper.xml
@@ -97,6 +97,8 @@
HAVING ((SUM(spa.ck_num)+sum(spa.lk_num) )>=SUM(spa.need_num))
+
+ ORDER BY spa.update_time desc