diff --git a/src/transformers/models/whisper/convert_openai_to_hf.py b/src/transformers/models/whisper/convert_openai_to_hf.py
index 8d29a8434ac..702fbd0204a 100755
--- a/src/transformers/models/whisper/convert_openai_to_hf.py
+++ b/src/transformers/models/whisper/convert_openai_to_hf.py
@@ -21,7 +21,7 @@ import os
 import tempfile
 import urllib
 import warnings
-from typing import Any, Optional, Tuple
+from typing import Any, List, Optional, Tuple
 
 import torch
 from huggingface_hub.utils import insecure_hashlib
@@ -252,7 +252,7 @@ def convert_openai_whisper_to_tfms(
 
 
 # Adapted from https://github.com/openai/tiktoken/issues/60#issuecomment-1499977960
-def _bpe(mergeable_ranks, token: bytes, max_rank=None) -> list[bytes]:
+def _bpe(mergeable_ranks, token: bytes, max_rank=None) -> List[bytes]:
     parts = [bytes([b]) for b in token]
     while True:
         min_idx = None