diff --git a/requirements-dev.txt b/requirements-dev.txt
index ce473e41..be0cdb77 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -31,6 +31,6 @@ scikit-learn
 pyyaml
 nox
 mypy==1.3.0
-sphinx==6.1.3
+sphinx==8.1.3
 sphinx-rtd-theme==1.2.2