composer require laravel/passport 报错

The "http://packagist.org/p/provider-2013%244d137e2cf56759e7abccbc8563507a81ea828a6a58c3d1fdff52e7fd2c625fae.json" file could not be downloaded: failed to open stream: Operation timed out
Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info