diff --git a/docs/source/requirements.txt b/docs/source/requirements.txt
index 5f0c561..aabbe4a 100644
--- a/docs/source/requirements.txt
+++ b/docs/source/requirements.txt
@@ -1,2 +1,2 @@
-sphinx==8.2.3
+sphinx==9.0.1
 sphinx-autoapi==3.6.1