diff --git a/docs/readthedocs/requirements.txt b/docs/readthedocs/requirements.txt
index 875163e..2d531f9 100644
--- a/docs/readthedocs/requirements.txt
+++ b/docs/readthedocs/requirements.txt
@@ -1,6 +1,6 @@
 commonmark==0.9.1
 recommonmark==0.7.1
-Sphinx==8.2.3
+Sphinx==9.0.1
 sphinx-rtd-theme==3.0.2
 myst-parser==4.0.1
 markdown-it-py==3.0.0