Merge pull request #169 from python-hyper/requires-io-master

[requires.io] dependency update on master branch

Author: wsanchez

tox.ini

@@ -188,7 +188,7 @@ basepython = {[default]basepython}
 
 deps =
     mypy==0.902
-    types-mock==0.1.1
+    types-mock==0.1.3
 
     {[default]deps}