diff --git a/setup.py b/setup.py
index f856f2d81e73b04b98b39dd8cd2edc313b0ec722..2c520631f2a8c9c3cf9c16170affb32e753b06de 100644
--- a/setup.py
+++ b/setup.py
@@ -1,8 +1,14 @@
+# Copyright (C) 2016-2020  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
 from setuptools import setup, find_packages
 
 setup(
     name='swh-sandbox',
     description='Sandbox project',
+    python_requires=">=3.7",
     version='0.0.3',
     author='Software Heritage developers',
     author_email='swh-devel@inria.fr',