git+https://github.com/sphinx-doc/sphinx.git@4.x#egg=sphinx
nbsphinx>=0.8.7
pydata-sphinx-theme>=0.7.2
sphinx-copybutton>=0.4.0
sphinx-gallery>=0.10.1
sphinxcontrib-applehelp>=1.0.2
sphinxcontrib-devhelp>=1.0.2
sphinxcontrib-htmlhelp>=2.0.0
sphinxcontrib-jsmath>=1.0.1
sphinxcontrib-qthelp>=1.0.3
sphinxcontrib-serializinghtml>=1.1.5
readthedocs-sphinx-search
numpydoc>=1.1.0