diff --git a/docs/requirements.txt b/docs/requirements.txt
index 0bec7a7d..e8ae0b30 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,2 +1,2 @@
-sphinx~=7.4.1
+sphinx~=9.1.0
 sphinx-rtd-theme~=3.1.0