我改了加速源，Composer require 也是各种超时，有什么好的办法吗？

vagrant@homestead:~/Code/larabbs$ composer config -g repo.packagist composer https://packagist.phpcomposer.com
vagrant@homestead:~/Code/larabbs$ composer require "overtrue/laravel-lang:~3.0"
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 2 installs, 0 updates, 0 removals
  - Installing caouecs/laravel-lang (3.0.54): Downloading (failed)
Downloading (failed)
Downloading (failed)    Failed to download caouecs/laravel-lang from dist: The "https://api.github.com/repos/caouecs/Laravel-lang/zipball/eaa1e26eb643d7fc696d410b45e55290143e1f7f" file could not be downloaded: SSL: Connection reset by peer
Failed to enable crypto
failed to open stream: operation failed
    Now trying to download from source
     - Installing caouecs/laravel-lang (3.0.54): Cloning eaa1e26eb6

  [Symfony\Component\Process\Exception\ProcessTimedOutException]
  The process "git clone --no-checkout 'https://github.com/caouecs/Laravel-lang
  .git' '/home/vagrant/Code/larabbs/vendor/caouecs/laravel-lang' && cd '/home/v
  agrant/Code/larabbs/vendor/caouecs/laravel-lang' && git remote add composer '
  https://github.com/caouecs/Laravel-lang.git' && git fetch composer" exceeded
  the timeout of 300 seconds.