1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/storage/database.py b/synapse/storage/database.py
index f50a4ce2fc..0af0507307 100644
--- a/synapse/storage/database.py
+++ b/synapse/storage/database.py
@@ -1116,7 +1116,7 @@ class DatabasePool:
     def simple_insert_many_txn(
         txn: LoggingTransaction,
         table: str,
-        keys: Collection[str],
+        keys: Sequence[str],
         values: Collection[Iterable[Any]],
     ) -> None:
         """Executes an INSERT query on the named table.