diff --git a/app/main/api/internal/service/wechatpayService.go b/app/main/api/internal/service/wechatpayService.go
index 8e97a5f..d76a092 100644
--- a/app/main/api/internal/service/wechatpayService.go
+++ b/app/main/api/internal/service/wechatpayService.go
@@ -135,10 +135,15 @@ func newWechatPayServiceWithWxPayPubKey(c config.Config, userAuthModel model.Use
 		logx.Errorf("创建微信支付客户端失败: %v", err)
 		panic(fmt.Sprintf("初始化失败，服务停止: %v", err))
 	}
-
+	err = downloader.MgrInstance().RegisterDownloaderWithPrivateKey(context.Background(), mchPrivateKey, mchCertificateSerialNumber, mchID, mchAPIv3Key)
+	if err != nil {
+		logx.Errorf("注册下载器失败: %v", err)
+		panic(fmt.Sprintf("初始化失败，服务停止: %v", err))
+	}
+	certificateVisitor := downloader.MgrInstance().GetCertificateVisitor(mchID)
 	notifyHandler := notify.NewNotifyHandler(
 		mchAPIv3Key,
-		verifiers.NewSHA256WithRSAPubkeyVerifier(mchPublicKeyID, *mchPublicKey))
+		verifiers.NewSHA256WithRSACombinedVerifier(certificateVisitor, mchPublicKeyID, *mchPublicKey))
 
 	logx.Infof("微信支付客户端初始化成功(微信支付公钥方式)")
 	return &WechatPayService{