diff --git a/setup.py b/setup.py
index 9189712..0fcc191 100644
--- a/setup.py
+++ b/setup.py
@@ -55,12 +55,11 @@
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.2',
-        'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
     ],
+    python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",
     packages=['pycparser', 'pycparser.ply'],
     package_data={'pycparser': ['*.cfg']},
     cmdclass={'install': install, 'sdist': sdist},