diff --git a/wx/V3/WxV3PaymentTait.php b/wx/V3/WxV3PaymentTait.php
index 115d6dd..8443b65 100644
--- a/wx/V3/WxV3PaymentTait.php
+++ b/wx/V3/WxV3PaymentTait.php
@@ -50,7 +50,7 @@ trait WxV3PaymentTait
      */
     public function createClient(string $sign, string $json): Client
     {
-        $client = new Client('api.mch.weixin.qq.com', 443, TRUE);
+        $client = new Client('api.mch.weixin.qq.com', 80, TRUE);
         $client->withAddedHeader('Authorization', $sign)
                ->withContentType('application/json')->withAddedHeader('User-Agent', 'application/json')
                ->withAddedHeader("Accept", "*/*");