diff --git a/hnn_core/tests/test_cell_response.py b/hnn_core/tests/test_cell_response.py
index ac6ed8b27..424bca403 100644
--- a/hnn_core/tests/test_cell_response.py
+++ b/hnn_core/tests/test_cell_response.py
@@ -2,7 +2,6 @@
 
 from glob import glob
 
-
 import matplotlib.pyplot as plt
 import pytest
 import numpy as np