diff --git a/setup.py b/setup.py
index 3a31829..ad92834 100644
--- a/setup.py
+++ b/setup.py
@@ -31,6 +31,6 @@ setup(
         'Programming Language :: Python :: 3',
     ],
     keywords='lego mindstorms ev3',
-    python_requires='>=3',
+    python_requires='~=3.4',
     packages=['pybricks'],
 )