title: Update binary to latest version using composer
body: <p>I'm using a Laravel package (<a href="https://github.com/spatie/browsershot" rel="nofollow">BrowserShot</a>) that has a dependency on phantomjs. It includes this by stating in composer.js:</p>
  
  <pre><code>"bin": [
      "bin/phantomjs"
  ],
  </code></pre>
  
  <p>Doing a <code>composer update</code> installs the phantomjs binary into vendors/bin/phantomjs, but it seems to be an out of date version (1.9.7) instead of (2.0.0).</p>
  
  <p>I can't find any documentation on how to set which version a binary dependency should be using composer.</p>
  
  <p>Is there anyway to do this without having to manually build a new binary and copy it into <code>vendors/bin/phantomjs</code> ?</p>