diff --git a/setup.py b/setup.py
index 67afb0b..4a4e64f 100644
--- a/setup.py
+++ b/setup.py
@@ -12,6 +12,7 @@ setup(
             'pizzatool=pizzatool:main',
         ]
     },
+    python_requires='>=3.7',
     install_requires=[
         'aiofiles',
         'aiosqlite',