diff --git a/glue_wwt/viewer/tests/test_wwt_widget.py b/glue_wwt/viewer/tests/test_wwt_widget.py
index 1e57bc9d..10d3eaa5 100644
--- a/glue_wwt/viewer/tests/test_wwt_widget.py
+++ b/glue_wwt/viewer/tests/test_wwt_widget.py
@@ -10,7 +10,6 @@
 from qtpy import compat
 
 import numpy as np
-from numpy.testing import assert_allclose
 
 from astropy.wcs import WCS