diff --git a/setup.py b/setup.py
index 12cdaa4127869b54af40766ed8b9c3b1bfffa317..e0ad2db51ed4caa31d6d15a108328861cff8433f 100755
--- a/setup.py
+++ b/setup.py
@@ -43,6 +43,7 @@ setup(
     description="Software Heritage <Module's intent>",
     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/<module-git-code>",