diff --git a/setup.cfg b/setup.cfg
index ccc3829..308e65d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -31,7 +31,7 @@ packages = find_namespace:
 install_requires =
     Sphinx>=1.8
     gitpython>=3.1.8
-python_requires = >=3.8
+python_requires = >=3.9
 include_package_data = True
 package_dir =
     = src