diff --git a/setup.py b/setup.py
index cfb9695..933ca39 100644
--- a/setup.py
+++ b/setup.py
@@ -26,5 +26,6 @@ setuptools.setup(
 		"Programming Language :: Python :: 3.6",
 	],
 	keywords="rsrc fork resource manager macintosh mac macos",
+	python_requires=">=3.6",
 	py_modules=["rsrcfork"],
 )