title: How to run --upgrade with pipenv?
body: <p>Running (say for numpy) <code>pipenv install --upgrade numpy</code> tries to install <code>--upgrade</code> and <code>numpy</code> instead of normal <code>pip</code> behavior for <code>--upgrade</code> switch.</p>
  <p>Is anyone else having this problem?</p>
  <p><strong>Edit:</strong></p>
  <p>Everyone, stop using <code>pipenv</code>. It's terrible. Use <code>poetry</code> instead.</p>