diff --git a/yt_dlp/utils/subtitles.py b/yt_dlp/utils/subtitles.py
index 784acecde..08040b202 100644
--- a/yt_dlp/utils/subtitles.py
+++ b/yt_dlp/utils/subtitles.py
@@ -1,8 +1,7 @@
 import re
 from dataclasses import dataclass
-from typing import TypeAlias
 
-Seconds: TypeAlias = float
+Seconds = float
 
 
 @dataclass