diff --git a/docs/requirements.txt b/docs/requirements.txt
index 53f39f9..544390b 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
 furo==2024.8.6
-sphinx==7.1.2
+sphinx==9.1.0
 sphinx-click==6.0.0
 myst_parser==3.0.1