title: Ubuntu: Node will not update to latest version
body: <p>I have an issue on my Ubuntu VM. I have tried several methods of updating to the latest Nodejs version (both LTS and Current), but running <code>node --version</code> still shows v4.8.4.</p>
  
  <p>I have tried using both <code>n</code> and <code>nvm</code> to update, as well as manually downloading and building. No matter what, v4.8.4 seems to be the only version running.</p>
  
  <p>If I run <code>which node</code> I get <code>~/.nvm/versions/node/v8.2.1/bin/node</code>. This looks correct, but <code>node --version</code> is still v4.8.4. </p>
  
  <p>How can I fix this?</p>