diff --git a/doc/requirements.txt b/doc/requirements.txt
index 2faa4de0..01c997a0 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -8,3 +8,4 @@ ipywidgets
 jupytext
 sphinx-last-updated-by-git
 sphinx-codeautolink
+git+https://github.com/sphinx-doc/sphinx.git@refs/pull/11708/head