diff --git a/sorts/odd_even_sort.py b/sorts/odd_even_sort.py
index 7dfe03054bc3..1543f52c23e4 100644
--- a/sorts/odd_even_sort.py
+++ b/sorts/odd_even_sort.py
@@ -5,7 +5,7 @@
 """
 
 
-def odd_even_sort(input_list: list) -> list:
+def odd_even_sort(input_list: list[int]) -> list[int]:
     """
     Sort input with odd even sort.