diff --git a/tests/test_dynamodbstreams/test_dynamodbstreams.py b/tests/test_dynamodbstreams/test_dynamodbstreams.py
index c75d66e7..065d7280 100644
--- a/tests/test_dynamodbstreams/test_dynamodbstreams.py
+++ b/tests/test_dynamodbstreams/test_dynamodbstreams.py
@@ -126,7 +126,7 @@ class TestCore:
 
         conn.put_item(
             TableName="test-streams",
-            Item={"id": {"S": "entry1"}, "first_col": {"S": "foo"}}
+            Item={"id": {"S": "entry1"}, "first_col": {"S": "foo"}},
         )
         conn.put_item(
             TableName="test-streams",
@@ -134,7 +134,7 @@ class TestCore:
                 "id": {"S": "entry1"},
                 "first_col": {"S": "bar"},
                 "second_col": {"S": "baz"},
-                "a": {"L": [{"M": {"b": {"S": "bar1"}}}]}
+                "a": {"L": [{"M": {"b": {"S": "bar1"}}}]},
             },
         )
         conn.delete_item(TableName="test-streams", Key={"id": {"S": "entry1"}})