title: bundle update not working correctly
body: <p>This is the error I'm getting with bundle update:</p>
  
  <p>Bundler could not find compatible versions for gem "railties":
    In Gemfile:
      coffee-rails (~> 4.1.0) was resolved to 4.1.0, which depends on
        railties (&lt; 5.0, >= 4.0.0)</p>
  
  <pre><code>rails (~&gt; 5.2) was resolved to 5.2.0, which depends on
    railties (= 5.2.0)
  
  sass-rails (~&gt; 5.0) was resolved to 5.0.7, which depends on
    railties (&lt; 6, &gt;= 4.0.0)
  
  web-console (~&gt; 2.0) was resolved to 2.3.0, which depends on
    railties (&gt;= 4.0)
  </code></pre>
  
  <p>I tried to check my rails -v and it told me to run bundle update and when I did, I got this error. Can anyone help ? I'm quite lost</p>