diff --git a/docs/requirements.txt b/docs/requirements.txt
index f3e87e7..ea6909f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
 furo==2024.8.6
-sphinx==8.0.2
+sphinx==9.0.0
 sphinx-click==6.0.0
 myst_parser==4.0.0