diff --git a/setup.py b/setup.py
index 0c61d01..1ae7c5d 100644
--- a/setup.py
+++ b/setup.py
@@ -29,6 +29,7 @@ setup(
     license=__license__,
     keywords=['yaml', 'lint', 'linter', 'syntax', 'checker'],
     url='https://github.com/adrienverge/yamllint',
+    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*',
     classifiers=[
         'Development Status :: 5 - Production/Stable',
         'Environment :: Console',