diff --git a/google_takeout_parser/parse_html/activity.py b/google_takeout_parser/parse_html/activity.py
index 5973603..b854b3e 100644
--- a/google_takeout_parser/parse_html/activity.py
+++ b/google_takeout_parser/parse_html/activity.py
@@ -337,7 +337,7 @@ def _parse_html_activity(p: Path) -> Iterator[Res[Activity]]:
     data = p.read_text()
 
     def soup_filter(tag: str, data: Dict[str, Any]) -> bool:
-        return tag == 'div' and 'outer-cell' in data.get('class', '')
+        return tag == "div" and "outer-cell" in data.get("class", "")
 
     soup = bs4.BeautifulSoup(data, "lxml", parse_only=bs4.SoupStrainer(soup_filter))  # type: ignore[arg-type]  # this overload is missing from stubs
 
diff --git a/google_takeout_parser/parse_json.py b/google_takeout_parser/parse_json.py
index cdea89f..e48b834 100644
--- a/google_takeout_parser/parse_json.py
+++ b/google_takeout_parser/parse_json.py
@@ -30,7 +30,9 @@ def _read_json_data(p: Path) -> Any:
     try:
         import orjson
     except ModuleNotFoundError:
-        warnings.warn("orjson not found, it can significantly speed up json parsing. Consider installing via 'pip install orjson'. Falling back onto stdlib json")
+        warnings.warn(
+            "orjson not found, it can significantly speed up json parsing. Consider installing via 'pip install orjson'. Falling back onto stdlib json"
+        )
         return json.loads(p.read_text())
     else:
         return orjson.loads(p.read_bytes())
diff --git a/google_takeout_parser/time_utils.py b/google_takeout_parser/time_utils.py
index 6843998..3ee3c64 100644
--- a/google_takeout_parser/time_utils.py
+++ b/google_takeout_parser/time_utils.py
@@ -15,6 +15,7 @@ def parse_datetime_millis(d: Union[str, float, int]) -> datetime:
     # from 3.11, it supports parsing strings ending with Z
     parse_json_utc_date = datetime.fromisoformat
 else:
+
     def parse_json_utc_date(ds: str) -> datetime:
         utc_naive = datetime.fromisoformat(ds.rstrip("Z"))
         return utc_naive.replace(tzinfo=timezone.utc)
@@ -24,4 +25,6 @@ def test_parse_utc_date() -> None:
     expected = datetime(2021, 9, 30, 1, 44, 33, tzinfo=timezone.utc)
     assert parse_json_utc_date("2021-09-30T01:44:33.000Z") == expected
 
-    assert parse_json_utc_date("2023-01-27T22:46:47.389352Z") == datetime(2023, 1, 27, 22, 46, 47, 389352, tzinfo=timezone.utc)
+    assert parse_json_utc_date("2023-01-27T22:46:47.389352Z") == datetime(
+        2023, 1, 27, 22, 46, 47, 389352, tzinfo=timezone.utc
+    )