diff --git a/codicefiscale/data.py b/codicefiscale/data.py
index 1436093..7ccd73c 100644
--- a/codicefiscale/data.py
+++ b/codicefiscale/data.py
@@ -31,9 +31,9 @@ def get_countries_data() -> Any:
     return deleted_countries + countries
 
 
-def get_indexed_data() -> (
-    dict[str, dict[str, list[dict[str, bool | datetime | str | list[str]]]]]
-):
+def get_indexed_data() -> dict[
+    str, dict[str, list[dict[str, bool | datetime | str | list[str]]]]
+]:
     municipalities = get_municipalities_data()
     countries = get_countries_data()
     data: dict[str, dict[str, list[dict[str, bool | datetime | str | list[str]]]]] = {
diff --git a/scripts/updatedata.py b/scripts/updatedata.py
index 4323c62..5d5760e 100644
--- a/scripts/updatedata.py
+++ b/scripts/updatedata.py
@@ -11,9 +11,9 @@
 
 def _expect_keys(d: dict[str, Any], keys: list[str]) -> None:
     missing_keys = list(set(keys) - set(d.keys()))
-    assert (
-        not missing_keys
-    ), f"Invalid keys, missing one or more expected keys {missing_keys}."
+    assert not missing_keys, (
+        f"Invalid keys, missing one or more expected keys {missing_keys}."
+    )
 
 
 def _slugify_names(*names: str) -> list[str]: