diff --git a/setup.cfg b/setup.cfg
index 91504cc..2921de9 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -6,16 +6,15 @@ author_email = openstack-discuss@lists.openstack.org
 home_page = https://docs.openstack.org/automaton/latest/
 description_file =
     README.rst
-python_requires = >=3.6
+python_requires = >=3.8
 classifier =
     Development Status :: 3 - Alpha
     Intended Audience :: Developers
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.6
-    Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: Implementation :: CPython
     Topic :: Software Development :: Libraries