title: Right way to upgrade RxJS to latest version?
body: <p>When trying to install the latest version of RxJS,</p>
  <p>I used <code>npm install rxjs</code> as explained in this documentation: <a href="https://github.com/reactivex/rxjs" rel="noreferrer">https://github.com/reactivex/rxjs</a></p>
  <p>But I got these warnings:</p>
  <blockquote>
  <p>npm warn @angular/common@5.1.0 requires a peer of rxjs@^5.5.0 but none is installed.</p>
  <p>You must install peer dependencies yourself.</p>
  </blockquote>
  <p><a href="https://i.stack.imgur.com/YE9gp.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/YE9gp.jpg" alt="enter image description here" /></a></p>
  <p>So it looks like RxJS is upgraded but not to the latest version.</p>
  <p>In the output we see that there is a latest one which is RxJS 5.5.0</p>
  <p>Is there any better npm command line to upgrade to the latest version ?</p>