diff --git a/p_tqdm/p_tqdm.py b/p_tqdm/p_tqdm.py
index d4d3dc0..87726f3 100644
--- a/p_tqdm/p_tqdm.py
+++ b/p_tqdm/p_tqdm.py
@@ -8,7 +8,7 @@
 t_imap: Returns an iterator for a sequential map.
 """
 
-from collections import Sized
+from collections.abc import Sized
 from typing import Any, Callable, Generator, Iterable, List
 
 from pathos.helpers import cpu_count