diff --git a/client/highway.go b/client/highway.go
index 1eae4f44..949fc5fc 100644
--- a/client/highway.go
+++ b/client/highway.go
@@ -204,6 +204,7 @@ func (c *QQClient) highwayUploadFileMultiThreadingByBDH(path string, cmdId int32
 	if err != nil {
 		return nil, errors.Wrap(err, "open file error")
 	}
+	defer file.Close()
 	if stat.Size() < 1024*1024*3 {
 		return c.highwayUploadByBDH(file, cmdId, ticket, ext, encrypt)
 	}
diff --git a/client/image.go b/client/image.go
index 563dda3b..28c16a5b 100644
--- a/client/image.go
+++ b/client/image.go
@@ -64,6 +64,7 @@ func (c *QQClient) UploadGroupImageByFile(groupCode int64, path string) (*messag
 	if err != nil {
 		return nil, err
 	}
+	defer img.Close()
 	fh, length := utils.ComputeMd5AndLength(img)
 	seq, pkt := c.buildGroupImageStorePacket(groupCode, fh[:], int32(length))
 	r, err := c.sendAndWait(seq, pkt)
@@ -104,6 +105,7 @@ func (c *QQClient) UploadPrivateImage(target int64, img io.ReadSeeker) (*message
 }
 
 func (c *QQClient) uploadPrivateImage(target int64, img io.ReadSeeker, count int) (*message.FriendImageElement, error) {
+	_, _ = img.Seek(0, io.SeekStart)
 	count++
 	fh, length := utils.ComputeMd5AndLength(img)
 	_, _ = img.Seek(0, io.SeekStart)