diff --git a/tests/test_ooi.py b/tests/test_ooi.py
index 941e2773..ee9dda6f 100644
--- a/tests/test_ooi.py
+++ b/tests/test_ooi.py
@@ -1,4 +1,5 @@
 """Unit tests for OOI workflow"""
+
 import datetime
 import os
 import shutil
diff --git a/tests/test_spectrograms.py b/tests/test_spectrograms.py
index f33787aa..75a319c8 100644
--- a/tests/test_spectrograms.py
+++ b/tests/test_spectrograms.py
@@ -1,4 +1,5 @@
 """Unit tests for various util functions relating to spectrogram creation"""
+
 import os.path
 
 import matplotlib.pyplot as plt