diff --git a/docs/requirements.txt b/docs/requirements.txt
index 8e83c7e..9963566 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
 furo==2025.9.25
-sphinx==8.2.3
+sphinx==9.0.4
 myst_parser==4.0.1