diff --git a/qq/Redhat.php b/qq/Redhat.php
index fe4b748..b911571 100644
--- a/qq/Redhat.php
+++ b/qq/Redhat.php
@@ -299,8 +299,9 @@ class Redhat extends SmallProgram
     {
         $client = new Client('api.qpay.qq.com', 443, true);
         $client->withHeader(['Content-Type' => 'application/x-www-form-urlencoded']);
-        $client->withSslKeyFile($this->payConfig->pay->wx->mchKey);
-        $client->withSslCertFile($this->payConfig->pay->wx->mchCert);
+        $client->withSslKeyFile($this->payConfig->pay->qq->mchKey);
+        $client->withSslCertFile($this->payConfig->pay->qq->mchCert);
+        $client->withCa($this->payConfig->pay->qq->mchCa);
         $proxyHost = $this->payConfig->getProxyHost();
         $proxyPort = $this->payConfig->getProxyPort();
         if (!empty($proxyHost) && $proxyPort > 0) {
@@ -331,7 +332,7 @@ class Redhat extends SmallProgram
     public function searchByOrderNo($listid, $orderNo = null): Result
     {
         $requestParam['nonce_str'] = Help::random(31);
-        $requestParam['mch_id']    = $this->payConfig->pay->wx->mchId;
+        $requestParam['mch_id']    = $this->payConfig->pay->qq->mchId;
         $requestParam['listid']    = $listid;
         if (!empty($orderNo)) {
             $requestParam['mch_billno'] = $orderNo;