diff --git a/mypy.ini b/mypy.ini
index 6ea60af..3a8eefc 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -4,4 +4,5 @@ namespace_packages = True
 explicit_package_bases = True
 show_error_codes = True
 ignore_missing_imports = True
+python_version = "3.8"
 ; plugins = adt.mypy_plugin