diff --git a/ruoyi-admin/src/main/resources/mapper/post/PostPaymentMapper.xml b/ruoyi-admin/src/main/resources/mapper/post/PostPaymentMapper.xml
index c12dc2e..5c93b35 100644
--- a/ruoyi-admin/src/main/resources/mapper/post/PostPaymentMapper.xml
+++ b/ruoyi-admin/src/main/resources/mapper/post/PostPaymentMapper.xml
@@ -101,4 +101,8 @@
         </foreach>
     </delete>
     
+    <delete id="deletePostPaymentByPostId" parameterType="Long">
+        delete from post_payment where post_id = #{postId}
+    </delete>
+    
 </mapper> 
\ No newline at end of file