diff --git a/sqlite_utils/cli.py b/sqlite_utils/cli.py
index c902295..d53a77c 100644
--- a/sqlite_utils/cli.py
+++ b/sqlite_utils/cli.py
@@ -302,7 +302,9 @@ def insert_upsert_options(fn):
             ),
             click.argument("table"),
             click.argument("json_file", type=click.File(), required=True),
-            click.option("--pk", help="Columns to use as the primary key, e.g. id", multiple=True),
+            click.option(
+                "--pk", help="Columns to use as the primary key, e.g. id", multiple=True
+            ),
             click.option("--nl", is_flag=True, help="Expect newline-delimited JSON"),
             click.option("-c", "--csv", is_flag=True, help="Expect CSV"),
             click.option(
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 5526d4d..0e01814 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -429,7 +429,10 @@ def test_insert_multiple_with_primary_key(db_path, tmpdir):
 
 def test_insert_multiple_with_compound_primary_key(db_path, tmpdir):
     json_path = str(tmpdir / "dogs.json")
-    dogs = [{"breed": "mixed", "id": i, "name": "Cleo {}".format(i), "age": i + 3} for i in range(1, 21)]
+    dogs = [
+        {"breed": "mixed", "id": i, "name": "Cleo {}".format(i), "age": i + 3}
+        for i in range(1, 21)
+    ]
     open(json_path, "w").write(json.dumps(dogs))
     result = CliRunner().invoke(
         cli.cli, ["insert", db_path, "dogs", json_path, "--pk", "id", "--pk", "breed"]