diff --git a/.docs/requirements.txt b/.docs/requirements.txt
index 60cccc365..d800f6441 100644
--- a/.docs/requirements.txt
+++ b/.docs/requirements.txt
@@ -1,4 +1,4 @@
-sphinx==8.2.3
+sphinx==9.1.0
 myst_parser==5.1.0
 sphinxcontrib-mermaid==2.1.0
 sphinx-rtd-theme==3.1.0