diff --git a/tests/utils/test_events.py b/tests/utils/test_events.py
index e79c2f47..b97820d5 100644
--- a/tests/utils/test_events.py
+++ b/tests/utils/test_events.py
@@ -20,7 +20,6 @@ import random
 from unittest import TestCase
 
 from nose_parameterized import parameterized
-import numpy as np
 import pandas as pd
 from six import iteritems
 from six.moves import range, map