Merge pull request #150 from python-hyper/requires-io-master

[requires.io] dependency update on master branch

Author: wsanchez

tox.ini

@@ -318,7 +318,7 @@ description = build documentation
 basepython = {[default]basepython}
 
 deps =
-    Sphinx==3.4.2
+    Sphinx==3.4.3
     sphinx-rtd-theme==0.5.1
 
 commands =