Merge pull request #165 from python-hyper/requires-io-master

[requires.io] dependency update on master branch

Author: wsanchez

tox.ini

@@ -322,7 +322,7 @@ description = build documentation
 basepython = {[default]basepython}
 
 deps =
-    Sphinx==4.0.0
+    Sphinx==4.0.1
     sphinx-rtd-theme==0.5.2
 
 commands =