Merge pull request #8 from Boyle-Lab/dependabot/pip/wheel-0.38.1

Bump wheel from 0.33.6 to 0.38.1

requirements_dev.txt

@@ -1,6 +1,6 @@
 pip==19.2.3
 bump2version==0.5.11
-wheel==0.33.6
+wheel==0.38.1
 watchdog==0.9.0
 flake8==3.7.8
 tox==3.14.0