[requires.io] dependency update

tox.ini

@@ -58,10 +58,18 @@ deps =
     {[testenv:coverage_report]deps}
     pytest-cov==2.9.0
 
+    # For hypothesis. Note Python 3.4 isn't supported by hypothesis.
+    py27: hypothesis==4.43.9
+    {py35,py36,py37,py38,py39,py2,py3}: hypothesis==5.8.6
+    py27: mock==4.0.2
+
 setenv =
     {[default]setenv}
 
     COVERAGE_FILE={toxworkdir}/coverage.{envname}
+    HYPOTHESIS_STORAGE_DIRECTORY={toxworkdir}/hypothesis
+
+passenv = CI
 
 commands =
     pytest --cov={env:PY_MODULE} --cov-report=term-missing:skip-covered --doctest-modules {posargs:src/{env:PY_MODULE}}
@@ -205,8 +213,20 @@ warn_return_any          = True
 warn_unreachable         = True
 warn_unused_ignores      = True
 
+# DrawCallable is generic
+
+[mypy-hyperlink.hypothesis]
+disallow_any_generics = False
+[mypy-hyperlink.test.test_hypothesis]
+disallow_any_generics = False
+
 # Don't complain about dependencies known to lack type hints
 
+[mypy-hypothesis]
+ignore_missing_imports = True
+[mypy-hypothesis.*]
+ignore_missing_imports = True
+
 [mypy-idna]
 ignore_missing_imports = True