diff --git a/pyproject.toml b/pyproject.toml
index 8020b0636..2de2c957b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,6 +30,8 @@ asyncio_mode = "auto"
 
 [tool.mypy]
 ignore_missing_imports = true
+namespace_packages = false
+implicit_optional = true
 warn_unused_ignores = true
 exclude = [
     '^build_helpers\.py$'