diff --git a/setup.py b/setup.py
index 4f0d0a0..84c3b41 100644
--- a/setup.py
+++ b/setup.py
@@ -45,6 +45,6 @@
     license='MIT',
     packages=['watchgod'],
     package_data={'watchgod': ['py.typed']},
-    python_requires='>=3.5',
+    python_requires='>=3.6',
     zip_safe=True,
 )