diff --git a/drivers/aliyundrive_open/upload.go b/drivers/aliyundrive_open/upload.go
index 29e7e310374..e4a0cf7ec0d 100644
--- a/drivers/aliyundrive_open/upload.go
+++ b/drivers/aliyundrive_open/upload.go
@@ -148,9 +148,8 @@ func (d *AliyundriveOpen) upload(ctx context.Context, dstDir model.Obj, stream m
 	// Part Size Unit: Bytes, Default: 20MB,
 	// Maximum number of slices 10,000, ≈195.3125GB
 	var partSize = calPartSize(stream.GetSize())
-	const dateFormat = "2006-01-02T15:04:05.999Z"
-	mtime := stream.ModTime()
-	mtimeStr := mtime.UTC().Format(dateFormat)
+	const dateFormat = "2006-01-02T15:04:05.000Z"
+	mtimeStr := stream.ModTime().UTC().Format(dateFormat)
 	ctimeStr := stream.CreateTime().UTC().Format(dateFormat)
 
 	createData := base.Json{