diff --git a/doc/requirements.txt b/doc/requirements.txt
index 9a111439..5a5ac03e 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,3 +1,3 @@
-sphinx==7.2.6
+sphinx==8.1.3
 sphinx_rtd_theme==2.0.0
 readthedocs-sphinx-search==0.3.2