diff --git a/setup.py b/setup.py
index 415f01b33..bad54df34 100755
--- a/setup.py
+++ b/setup.py
@@ -73,6 +73,7 @@ def get_packages(package):
     author="Tom Christie",
     author_email="tom@tomchristie.com",
     packages=get_packages("uvicorn"),
+    python_requires=">=3.7",
     install_requires=minimal_requirements,
     extras_require={"standard": extra_requirements},
     include_package_data=True,