diff --git a/docs/requirements-doc.txt b/docs/requirements-doc.txt
index 779f829b00..2149217d80 100644
--- a/docs/requirements-doc.txt
+++ b/docs/requirements-doc.txt
@@ -4,15 +4,14 @@
 wheel
 
 # docs
-Sphinx<3.6
 jinja2<3.1
 markupsafe==2.0.1
-sphinx-multiversion@git+https://github.com/mikemckiernan/sphinx-multiversion.git
-sphinxcontrib-copydirs@git+https://github.com/mikemckiernan/sphinxcontrib-copydirs.git
+sphinx-multiversion@git+https://github.com/mikemckiernan/sphinx-multiversion.git@v0.3.0
+sphinxcontrib-copydirs@git+https://github.com/mikemckiernan/sphinxcontrib-copydirs.git@v0.3.3
 sphinx-external-toc<0.4
 sphinx_rtd_theme
-natsort<8.2
-myst-nb<0.16.0
+natsort==8.1.0
+myst-nb
 nbclient<0.6
 markdown-it-py
 linkify-it-py