diff --git a/docs/requirements.txt b/docs/requirements.txt
index f8ccf75..7bbe883 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -39,7 +39,7 @@ ruamel.yaml.clib==0.2.15
 six==1.17.0
 snowballstemmer==3.0.1
 soupsieve==2.8
-Sphinx==8.2.3
+Sphinx==9.0.4
 sphinx-autodoc-typehints==3.5.2
 sphinx-basic-ng==1.0.0b2
 sphinx-jinja2-compat==0.4.1