diff --git a/utils/alipay/mch_cert.go b/utils/alipay/mch_cert.go
index 26e2e10..b27ab94 100644
--- a/utils/alipay/mch_cert.go
+++ b/utils/alipay/mch_cert.go
@@ -3,14 +3,13 @@ package alipay
 import (
 	"fmt"
 	"io/ioutil"
-	"log"
 )
 
 // getMchCertSN 提取证书序列号
 func getMchCertSN(certPath string) (string, error) {
 	certData, err := ioutil.ReadFile(certPath)
 	if err != nil {
-		log.Fatalf("Failed to read the cert file: %s", err)
+		return "", fmt.Errorf("Failed to read the cert file: %s", err)
 	}
 
 	cert, err := getCert(certData)