diff --git a/src/main/resources/mappers/business/backstage/PurchaseMapper.xml b/src/main/resources/mappers/business/backstage/PurchaseMapper.xml
index 5e9a0de..18eb421 100644
--- a/src/main/resources/mappers/business/backstage/PurchaseMapper.xml
+++ b/src/main/resources/mappers/business/backstage/PurchaseMapper.xml
@@ -104,7 +104,7 @@
     </update>
     <update id="updateStPlanApplyData">
         update st_plan_apply
-        set cg_num=#{cgNum},lk_num= #{lkNum} where id = #{planId}
+        set ck_num=#{cgNum},lk_num= #{lkNum} where id = #{planId}
     </update>