diff --git a/setup.py b/setup.py
index 706eaae..0c31755 100644
--- a/setup.py
+++ b/setup.py
@@ -14,6 +14,7 @@
     packages=find_packages('src'),
     include_package_data=True,
     zip_safe=False,
+    python_requires='>=3.7',
     install_requires=[
         'setuptools',
         'zc.buildout',