diff --git a/setup.py b/setup.py
index 788b54f..c75ceb3 100644
--- a/setup.py
+++ b/setup.py
@@ -35,10 +35,6 @@ def readme():
         'License :: OSI Approved :: BSD License',
         'Operating System :: OS Independent',
         'Programming Language :: Python',
-        'Programming Language :: Python :: 3.3',
-        'Programming Language :: Python :: 3.4',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
@@ -49,6 +45,7 @@ def readme():
         'Topic :: Software Development :: Documentation',
         'Topic :: Utilities'
     ],
+    python_requires='>=3.7',
     platforms='any',
     packages=find_packages(),
     namespace_packages=['sphinxcontrib'],