diff --git a/docs/requirements.txt b/docs/requirements.txt
index bb536be1..3aa73ed7 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
-sphinx==9.0.3
+sphinx==9.1.0
 pallets_sphinx_themes==2.3.0
 myst-parser==4.0.1
 enum-tools[sphinx]==0.13.0