diff --git a/api/oss_upload.go b/api/oss_upload.go
index 9c11ba8..b643eaa 100644
--- a/api/oss_upload.go
+++ b/api/oss_upload.go
@@ -37,6 +37,7 @@ func OssUpload(url, filePath string) error {
 	if err != nil {
 		return err
 	}
+	req.Header.Set("Content-Type", "video/mp4")
 	req.Header.Set("Content-Length", fmt.Sprintf("%d", len(fileBytes)))
 	client := &http.Client{}
 	resp, err := client.Do(req)