diff --git a/src/pyepal/pal/pal_base.py b/src/pyepal/pal/pal_base.py
index da54126..2bd3212 100644
--- a/src/pyepal/pal/pal_base.py
+++ b/src/pyepal/pal/pal_base.py
@@ -20,7 +20,7 @@
 import logging
 import warnings
 from copy import deepcopy
-from typing import Iterable, List, Union, Tuple
+from typing import Iterable, List, Tuple, Union
 
 import numpy as np
 from sklearn.metrics import mean_absolute_error
diff --git a/src/pyepal/pal/pal_ensemble.py b/src/pyepal/pal/pal_ensemble.py
index c57a5b8..7076ca4 100644
--- a/src/pyepal/pal/pal_ensemble.py
+++ b/src/pyepal/pal/pal_ensemble.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 import numpy as np
 
 
diff --git a/tests/test_pal_ensemble.py b/tests/test_pal_ensemble.py
index b685edd..b42cf73 100644
--- a/tests/test_pal_ensemble.py
+++ b/tests/test_pal_ensemble.py
@@ -1,11 +1,13 @@
-from pyepal.pal.pal_ensemble import PALEnsemble
-import pytest
+# -*- coding: utf-8 -*-
 import numpy as np
+import pytest
+
+from pyepal.pal.pal_ensemble import PALEnsemble
 
 
 def test_pal_ensemble_init(make_random_dataset):
-    from pyepal.pal.pal_gpy import PALGPy
     from pyepal.models.gpr import build_model
+    from pyepal.pal.pal_gpy import PALGPy
 
     X, y = make_random_dataset
     sample_idx = np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10])