diff --git a/pyproject.toml b/pyproject.toml
index 5abd198..909983b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -116,8 +116,3 @@ install_types = true
 non_interactive = true
 pretty = true
 disable_error_code = ["import-untyped"]
-# TODO: decide on one of these options, or something better:
-#explicit_package_bases = true
-exclude = [
-    "/conftest\\.py$",
-]
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29