title: Problem with matplotlib (anaconda) update
body: <p>I'm having an issue with the version of my matplotlib. I don't understand why, since I downloaded and installed my new Ubuntu and anconda just last week.</p>
  
  <p>I was getting an error in one of my notebooks in a legend settings, where I realized the my newly installed matplotlib version is 2.2.2. Although it was odd, I tried to update it using </p>
  
  <blockquote>
    <p>$ conda update matplotlib</p>
  </blockquote>
  
  <p>in the terminal which did basically nothing. So I tried the command</p>
  
  <blockquote>
    <p>$ pip install --upgrade matplotlib</p>
  </blockquote>
  
  <p>this one did update it to 3.1.1, but now I got the error that other packages (e.g. Pandas) were not installed.</p>
  
  <p>I tried to fix that by going to the navigator directly and installing the packages I could think of one by one. It worked, but matplotlib was reverted back to 2.2.2. </p>
  
  <p>To get out of this mess I uninstalled anaconda and reinstalled it again. Now matplotlib is still 2.2.2.</p>
  
  <p>I would be grateful if anyone could tell me what the source of the problem is and/or how to solve it. Thanks a lot in advance! :)</p>