diff --git a/setup.json b/setup.json
index 986dd99a68..633f929d1b 100644
--- a/setup.json
+++ b/setup.json
@@ -6,6 +6,7 @@
   "author": "The AiiDA team",
   "author_email": "developers@aiida.net",
   "include_package_data": true,
+  "python_requires": ">=2.7,!=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*",
   "classifiers": [
     "Framework :: AiiDA",
     "License :: OSI Approved :: MIT License",