diff --git a/tests/test_preprocessing/test_arrays.py b/tests/test_utils/test_arrays.py
similarity index 88%
rename from tests/test_preprocessing/test_arrays.py
rename to tests/test_utils/test_arrays.py
index 8ea13da..a316390 100644
--- a/tests/test_preprocessing/test_arrays.py
+++ b/tests/test_utils/test_arrays.py
@@ -1,6 +1,6 @@
 import numpy as np
 
-from batdetect2.preprocess.arrays import adjust_width, extend_width
+from batdetect2.utils.arrays import adjust_width, extend_width
 
 
 def test_extend_width():
diff --git a/tests/test_preprocessing/test_tensors.py b/tests/test_utils/test_tensors.py
similarity index 94%
rename from tests/test_preprocessing/test_tensors.py
rename to tests/test_utils/test_tensors.py
index 2115e50..5d82119 100644
--- a/tests/test_preprocessing/test_tensors.py
+++ b/tests/test_utils/test_tensors.py
@@ -1,7 +1,7 @@
 import numpy as np
 import torch
 
-from batdetect2.preprocess.tensors import adjust_width, make_width_divisible
+from batdetect2.utils.tensors import adjust_width, make_width_divisible
 
 
 def test_width_is_divisible_after_adjustment():