diff --git a/docs/requirements.txt b/docs/requirements.txt
index cf5aa5efdc..18615915d8 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
-Sphinx==8.1.3
+Sphinx==9.0.0
 myst-parser==4.0.1
 sphinx-copybutton==0.5.2
 sphinx-design==0.6.1