diff --git a/setup.py b/setup.py
index 31b49dcd2..7badce7d6 100644
--- a/setup.py
+++ b/setup.py
@@ -145,4 +145,5 @@ def read(path):
       repozo = ZODB.scripts.repozo:main
     """,
     include_package_data=True,
+    python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*',
 )