diff --git a/cash-sdk/aggregation-pay/src/main/java/com/czg/third/wechat/WechatReqUtils.java b/cash-sdk/aggregation-pay/src/main/java/com/czg/third/wechat/WechatReqUtils.java
index e2d4bf967..ad52b319b 100644
--- a/cash-sdk/aggregation-pay/src/main/java/com/czg/third/wechat/WechatReqUtils.java
+++ b/cash-sdk/aggregation-pay/src/main/java/com/czg/third/wechat/WechatReqUtils.java
@@ -54,12 +54,14 @@ public class WechatReqUtils {
         HttpRequest request = switch (method) {
             case "POST" -> HttpUtil.createPost(configDto.getDomain() + url)
                     .header("Authorization", authorization)
+                    .header("Wechatpay-Serial", configDto.getPublicKeyId())
                     .charset(StandardCharsets.UTF_8)
                     .contentType("application/json")
                     .body(body );
 
             case "GET" -> HttpUtil.createGet(configDto.getDomain() + url)
                     .header("Authorization", authorization)
+                    .header("Wechatpay-Serial", configDto.getPublicKeyId())
                     .charset(StandardCharsets.UTF_8)
                     .contentType("application/json");
             default -> throw new CzgException("不支持的请求方法");