创建项目时出现`TransportException`，是否因为人在国外？

我人在国外，但很想学习这篇教程。
当执行composer create-project laravel/laravel Laravel --prefer-dist "5.5.*"时，出现以下报错：
*[Composer\Downloader\TransportException] The "https://packagist.laravel-china.org/packages.json" file could not be downloaded: Peer certificate CN=.phphub
.org' did not match expected CN=packagist.laravel-china.org' Failed to enable crypto failed to open stream: operation failed**

请问如何解决？
谢谢！