diff --git a/geomagio/algorithm/XYZAlgorithm.py b/geomagio/algorithm/XYZAlgorithm.py
index b93f26a882102156e172d9b909f25430ba38d83c..e099c5b26a45c6a4b7a532be048e7a1141bb4281 100644
--- a/geomagio/algorithm/XYZAlgorithm.py
+++ b/geomagio/algorithm/XYZAlgorithm.py
@@ -7,7 +7,6 @@ from __future__ import absolute_import
 from .Algorithm import Algorithm
 from .AlgorithmException import AlgorithmException
 from .. import StreamConverter
-import numpy as np
 
 # List of channels by geomagnetic observatory orientation.
 # geo represents a geographic north/south orientation