diff --git a/backend/setup.cfg b/backend/setup.cfg
index 5f5540b..516e36b 100644
--- a/backend/setup.cfg
+++ b/backend/setup.cfg
@@ -20,6 +20,7 @@ classifiers =
 universal = True
 
 [options]
+python_requires = >=3.8
 packages =
     flaschengeist_events
 install_requires =