sphinx-rtd-theme is underscored in conda-forge, updated
@@ -27,7 +27,7 @@ requirements:
- python >=3.6
- sphinx ~=3.1 # BSD
- sphinx-autoapi ~=1.2
- - sphinx-rtd-theme <0.6,>=0.5
+ - sphinx_rtd_theme <0.6,>=0.5
- sphinxcontrib-openapi ~=0.5
- sphinxcontrib-redoc ~=1.5
- webargs ~=5.5
