diff --git a/util/http.go b/util/http.go
index 26e4a7be..f0747693 100644
--- a/util/http.go
+++ b/util/http.go
@@ -7,13 +7,14 @@ import (
 	"encoding/json"
 	"encoding/pem"
 	"encoding/xml"
-	"fmt"
 	"io"
 	"log"
 	"mime/multipart"
 	"net/http"
 	"os"
 
+	"fmt"
+
 	"golang.org/x/crypto/pkcs12"
 )
 
diff --git a/wechat.go b/wechat.go
index 017ae1eb..3e3b825a 100644
--- a/wechat.go
+++ b/wechat.go
@@ -1,10 +1,11 @@
 package wechat
 
 import (
-	"github.com/silenceper/wechat/v2/util"
 	"net/http"
 	"os"
 
+	"github.com/silenceper/wechat/v2/util"
+
 	log "github.com/sirupsen/logrus"
 
 	"github.com/silenceper/wechat/v2/cache"