diff --git a/setup.py b/setup.py
index 309325da702aef7ab4c70031b1913e96580b186e..eb79ad2d9f7d9563958bb9824e0a629180883a2b 100755
--- a/setup.py
+++ b/setup.py
@@ -40,6 +40,7 @@ setup(
     description="Software Heritage storage manager",
     long_description=long_description,
     long_description_content_type="text/markdown",
+    python_requires=">=3.7",
     author="Software Heritage developers",
     author_email="swh-devel@inria.fr",
     url="https://forge.softwareheritage.org/diffusion/DSTO/",