diff --git a/tests/test_spectrum.py b/tests/test_spectrum.py
index eef39ec..ce1c399 100644
--- a/tests/test_spectrum.py
+++ b/tests/test_spectrum.py
@@ -57,9 +57,10 @@ def test_set_forest_region(self, setup_data):
         assert ('R' not in spec.forestflux.keys())
         assert (not spec.forestreso)
 
-        spec.flux['B'][10:15] = 1e2
-        spec.set_forest_region(3600., 6000., 1050., 1180.)
-        npt.assert_equal(spec.forestflux['B'][10:15], 0)
+        # Test outlier masking (turned off)
+        # spec.flux['B'][10:15] = 1e2
+        # spec.set_forest_region(3600., 6000., 1050., 1180.)
+        # npt.assert_equal(spec.forestflux['B'][10:15], 0)
 
     def test_drop_short_arms(self, setup_data):
         cat_by_survey, _, data = setup_data(1)