[requires.io] dependency update (#142)

Author: glyph

tox.ini

@@ -10,8 +10,8 @@ python =
 
 [testenv]
 deps =
-    pytest==5.4.1
-    pytest-cov==2.8.1
+    pytest==5.4.3
+    pytest-cov==2.10.0
 commands =
     pytest --cov=wsproto {posargs}
 
@@ -48,7 +48,7 @@ commands = prospector
 [testenv:docs]
 basepython = python3.8
 deps =
-    sphinx==3.0.3
+    sphinx==3.1.2
 whitelist_externals = make
 changedir = {toxinidir}/docs
 commands =
@@ -58,9 +58,9 @@ commands =
 [testenv:packaging]
 basepython=python3.8
 deps =
-   check-manifest==0.41
+   check-manifest==0.42
    readme-renderer==26.0
-   twine==3.1.1
+   twine==3.2.0
 commands =
    check-manifest
    python setup.py check --metadata --strict