diff --git a/pyproject.toml b/pyproject.toml
index 66ddb28..5b078fe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ pycodestyle = "2.14.0"
 mock = "5.2.0"
 pylint = "3.3.9"
 setuptools-scm = "8.3.1"
-Sphinx = "7.4.7"
+Sphinx = "9.1.0"
 responses = "0.25.8"