Update tox from 2.9.1 to 3.2.1

pyup-bot · s-m-i-t-a · commit ea4ce245e186 · 2018-08-29T10:29:22.000+02:00
diff --git a/requirements/development.txt b/requirements/development.txt
@@ -12,7 +12,7 @@ pyflakes==2.0.0
 mccabe==0.6.1
 pytest==3.4.0
 pytest-cov==2.5.1
-tox==2.9.1
+tox==3.2.1
 coveralls==1.2.0
 mock==2.0.0
 
