diff --git a/src/so_vits_svc_fork/data_utils.py b/src/so_vits_svc_fork/data_utils.py
index 6912c713..4caacd28 100644
--- a/src/so_vits_svc_fork/data_utils.py
+++ b/src/so_vits_svc_fork/data_utils.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from pathlib import Path
 from random import Random
 from typing import Sequence