Updated doc requirements and flake8 config.

doc-source/requirements.txt

@@ -1,17 +1,17 @@
 autodocsumm>=0.2.0
-default-values>=0.2.0
+default-values>=0.4.2
 domdf-sphinx-theme>=0.3.0
 extras-require>=0.2.0
 pyyaml>=5.3.1
 repo-helper-sphinx-theme>=0.0.2
-seed-intersphinx-mapping>=0.1.1
+seed-intersphinx-mapping>=0.3.1
 sphinx<3.4.0,>=3.0.3
 sphinx-copybutton>=0.2.12
 sphinx-notfound-page>=0.5
 sphinx-prompt>=1.1.0
 sphinx-tabs>=1.1.13
-sphinx-toolbox>=1.8.2
+sphinx-toolbox>=1.8.3
 sphinxcontrib-httpdomain>=1.7.0
 sphinxemoji>=0.1.6
 tabulate>=0.8.7
-toctree-plus>=0.0.4
+toctree-plus>=0.1.0

tox.ini

@@ -76,7 +76,7 @@ deps =
     git+https://github.com/PyCQA/pydocstyle@5118faa7173b0e5bbc230c4adf628758e13605bf
     git+https://github.com/domdfcoding/flake8-quotes.git
     git+https://github.com/domdfcoding/flake8-rst-docstrings.git
-    git+https://github.com/domdfcoding/flake8-rst-docstrings-sphinx.git@v2
+    git+https://github.com/domdfcoding/flake8-rst-docstrings-sphinx.git
     pygments>=2.7.1
 commands = python3 -m flake8_rst_docstrings_sphinx flake8_dunder_all tests --allow-toolbox {posargs}