title: Updating Laravel Homestead error: 401 Unauthorized
body: <p>I'm trying to update Laravel Homestead with <code>vagrant box update</code> command. It used to work for me in the past, but now it gives me the error:</p>
  
  <pre><code>~/Homestead: vagrant box update
  ==&gt; homestead-7: Checking for updates to 'laravel/homestead'
      homestead-7: Latest installed version: 2.1.0
      homestead-7: Version constraints: &gt;= 1.0.0
      homestead-7: Provider: virtualbox
  There was an error while downloading the metadata for this box.
  The error message is shown below:
  
  The requested URL returned error: 401 Unauthorized
  </code></pre>
  
  <p>Why is this error produced? What should I be authorized to?</p>