Upload new version with new name

Hi, I'm using the box-javascript-sdk to upload files and versions. I want to be able to change the file name when uploading a new version of the file.

This is what I have right now, but the name doesn't get updated. How can I change the name upon new version upload??

        let formData = new FormData();
        const fileName = 'newName';
        formData.append(file.name, file);
        formData.append('parent_id', boxFolderId);
        formData.append('fileId', contentId);
        formData.append('name', fileName);

        this.props.boxClient.files.uploadNewFileVersion({ body: formData })