diff --git a/pts/evaluation/backtest.py b/pts/evaluation/backtest.py
index b9842ee..5fa0081 100644
--- a/pts/evaluation/backtest.py
+++ b/pts/evaluation/backtest.py
@@ -6,8 +6,8 @@ from typing import Dict, Iterator, NamedTuple, Optional, Tuple, Union
 import pandas as pd
 
 # First-party imports
-from pts.transform import AdhocTransform
-from pts.dataset import DataEntry, Dataset, TransformedDataset, InferenceDataLoader, DatasetStatistics, calculate_dataset_statistics
+from pts.transform import AdhocTransform, TransformedDataset
+from pts.dataset import DataEntry, Dataset, InferenceDataLoader, DatasetStatistics, calculate_dataset_statistics
 from pts.model import Estimator, PTSEstimator, PTSPredictor, Predictor, Forecast
 from .evaluator import Evaluator