Merge pull request #120 from python-hyper/requires-io-master

[requires.io] dependency update on master branch

Author: wsanchez

tox.ini

@@ -258,7 +258,7 @@ description = build documentation
 basepython = {[default]basepython}
 
 deps =
-    Sphinx==2.3.1
+    Sphinx==2.4.4
     sphinx-rtd-theme==0.4.3
 
 commands =