Merge pull request #172 from python-hyper/requires-io-master

[requires.io] dependency update on master branch

Author: wsanchez

tox.ini

@@ -93,7 +93,7 @@ basepython = {[default]basepython}
 skip_install = True
 
 deps =
-    black==21.6b0
+    black==21.7b0
 
 setenv =
     BLACK_LINT_ARGS=--check
@@ -323,7 +323,7 @@ description = build documentation
 basepython = {[default]basepython}
 
 deps =
-    Sphinx==4.0.3
+    Sphinx==4.1.1
     sphinx-rtd-theme==0.5.2
 
 commands =