diff --git a/atroposlib/tests/test_reward_normalization.py b/atroposlib/tests/test_reward_normalization.py
index 6f0512e3..21eafea5 100644
--- a/atroposlib/tests/test_reward_normalization.py
+++ b/atroposlib/tests/test_reward_normalization.py
@@ -12,7 +12,7 @@ Tests cover:
 """
 
 import math
-from typing import List
+
 
 import numpy as np
 import pytest