diff --git a/sinergym/utils/callbacks.py b/sinergym/utils/callbacks.py
index 37b67cde02..0bbbc5bfcc 100644
--- a/sinergym/utils/callbacks.py
+++ b/sinergym/utils/callbacks.py
@@ -9,8 +9,8 @@
 from stable_baselines3.common.env_util import is_wrapped
 from stable_baselines3.common.vec_env import VecEnv, sync_envs_normalization
 
-from sinergym.utils.wrappers import LoggerWrapper, NormalizeObservation
 from sinergym.utils.evaluation import evaluate_policy
+from sinergym.utils.wrappers import LoggerWrapper, NormalizeObservation
 
 
 class LoggerCallback(BaseCallback):
diff --git a/sinergym/utils/evaluation.py b/sinergym/utils/evaluation.py
index 28599245b9..ac0a8a0f1c 100644
--- a/sinergym/utils/evaluation.py
+++ b/sinergym/utils/evaluation.py
@@ -1,7 +1,7 @@
 """Custom policy evaluations for Evaluation Callbacks."""
 
-from itertools import accumulate
 import warnings
+from itertools import accumulate
 from typing import Any, Callable, Dict, Optional, Union
 
 import gym