title: Unable to update gems on production server
body: <p>Can not update gems on production server.</p>
  
  <p>I've tried <code>bundle install --deployment</code> and <code>bundle install --without development test</code></p>
  
  <p>But keep getting:</p>
  
  <pre><code>You are trying to install in deployment mode after changing
  your Gemfile. Run `bundle install` elsewhere and add the
  updated Gemfile.lock to version control.
  
  If this is a development machine, remove the Gemfile freeze 
  by running `bundle install --no-deployment
  </code></pre>
  
  <h2>EDIT</h2>
  
  <p>I don't know if this is correct, but needed a quick fix.  I ran <code>bundle install --no-deployment</code> then <code>bundle update</code> then ran <code>bundle install --deployment</code> again</p>