diff -Naur fastapi-0.67.0-original/tests/test_tutorial/test_dataclasses/test_tutorial003.py fastapi-0.67.0/tests/test_tutorial/test_dataclasses/test_tutorial003.py
--- fastapi-0.67.0-original/tests/test_tutorial/test_dataclasses/test_tutorial003.py	2021-07-21 14:00:39.000000000 -0400
+++ fastapi-0.67.0/tests/test_tutorial/test_dataclasses/test_tutorial003.py	2021-07-27 15:01:25.883497846 -0400
@@ -84,6 +84,7 @@
                 "properties": {
                     "name": {"title": "Name", "type": "string"},
                     "items": {
+                        "default": [],
                         "title": "Items",
                         "type": "array",
                         "items": {"$ref": "#/components/schemas/Item"},