Update wheel from 0.31.0 to 0.31.1

pyup-bot · pyup-bot · commit 16c3439a0b48 · 2018-05-14T05:54:21.000+02:00
diff --git a/requirements_dev.txt b/requirements_dev.txt
@@ -1,6 +1,6 @@
 pip==10.0.1
 bumpversion==0.5.3
-wheel==0.31.0
+wheel==0.31.1
 watchdog==0.8.3
 flake8==3.5.0
 tox==3.0.0
