diff --git a/mssql_python/cursor.py b/mssql_python/cursor.py
index f0b1d6a6..2341ffa9 100644
--- a/mssql_python/cursor.py
+++ b/mssql_python/cursor.py
@@ -2013,7 +2013,10 @@ def columns(self, table=None, catalog=None, schema=None, column=None):
         # Use the helper method to prepare the result set
         return self._prepare_metadata_result_set(fallback_description=fallback_description)
 
-    def _transpose_rowwise_to_columnwise(self, seq_of_parameters: list) -> tuple[list, int]:
+    def _transpose_rowwise_to_columnwise(
+        self,
+        seq_of_parameters: Sequence[Sequence[Any]],
+    ) -> tuple[list, int]:
         """
         Convert sequence of rows (row-wise) into list of columns (column-wise),
         for array binding via ODBC. Works with both iterables and generators.
@@ -2131,7 +2134,9 @@ def _compute_column_type(self, column):
         return sample_value, None, None, max_decimal_formatted_len
 
     def executemany(  # pylint: disable=too-many-locals,too-many-branches,too-many-statements
-        self, operation: str, seq_of_parameters: Union[List[Sequence[Any]], List[Mapping[str, Any]]]
+        self,
+        operation: str,
+        seq_of_parameters: Union[Sequence[Sequence[Any]], Sequence[Mapping[str, Any]]],
     ) -> None:
         """
         Prepare a database operation and execute it against all parameter sequences.
diff --git a/mssql_python/mssql_python.pyi b/mssql_python/mssql_python.pyi
index 9b08913d..ad18756e 100644
--- a/mssql_python/mssql_python.pyi
+++ b/mssql_python/mssql_python.pyi
@@ -193,7 +193,9 @@ class Cursor:
         reset_cursor: bool = True,
     ) -> "Cursor": ...
     def executemany(
-        self, operation: str, seq_of_parameters: Union[List[Sequence[Any]], List[Mapping[str, Any]]]
+        self,
+        operation: str,
+        seq_of_parameters: Union[Sequence[Sequence[Any]], Sequence[Mapping[str, Any]]],
     ) -> None: ...
     def fetchone(self) -> Optional[Row]: ...
     def fetchmany(self, size: Optional[int] = None) -> List[Row]: ...