diff --git a/setup.py b/setup.py
index df14dd1d..3fcdc806 100644
--- a/setup.py
+++ b/setup.py
@@ -37,6 +37,7 @@ setup(
     author_email=__email__,
     url=__url__,
     license=__license__,
+    python_requires='>=2.7, <3',
     install_requires=install_requires,
     packages=find_packages(),
     package_data={