diff --git a/docs/requirements.txt b/docs/requirements.txt
index 1d3091c..fdc270c 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -8,7 +8,7 @@ array_api_compat
 # document requirements
 pandoc
 Jinja2
-sphinx>=8.1.3
+sphinx>=9.0.4
 myst-nb
 sphinx_thebe
 sphinx-autodoc-typehints