diff --git a/astacus/node/uploader.py b/astacus/node/uploader.py
index 5daf3fd8..84b8709c 100644
--- a/astacus/node/uploader.py
+++ b/astacus/node/uploader.py
@@ -27,7 +27,7 @@ def write_hashes_to_storage(
         parallel: int,
         progress: Progress,
         still_running_callback=lambda: True,
-        validate_file_hashes: bool = True
+        validate_file_hashes: bool = True,
     ):
         todo = [
             (hexdigest, list(snapshot.get_files_for_digest(hexdigest)))
diff --git a/tests/utils.py b/tests/utils.py
index b0e5cebb..4ba083f8 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -92,7 +92,7 @@ def get_clickhouse_version(command: Sequence[str | Path]) -> tuple[int, ...]:
 
 
 def is_cassandra_driver_importable() -> bool:
-    return importlib.util.find_spec("cassandra") is not None
+    return importlib.util.find_spec("cassandra") is not None  # type: ignore[attr-defined]
 
 
 def format_astacus_command(*arg: str) -> Sequence[str]: