diff --git a/setup.py b/setup.py
index 9fe89fd..f9a7832 100755
--- a/setup.py
+++ b/setup.py
@@ -65,6 +65,7 @@ def get_package_data(package):
     install_requires=[
         'jinja2'
     ],
+    python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*",
     classifiers=[
         'Development Status :: 3 - Alpha',
         'Environment :: Web Environment',