diff --git a/jdaviz/configs/cubeviz/plugins/tests/test_parsers.py b/jdaviz/configs/cubeviz/plugins/tests/test_parsers.py
index 17cdd4967f..1f305b2742 100644
--- a/jdaviz/configs/cubeviz/plugins/tests/test_parsers.py
+++ b/jdaviz/configs/cubeviz/plugins/tests/test_parsers.py
@@ -222,7 +222,7 @@ def test_manga_cube(cubeviz_helper):
     se.function = "Mean"
     se.extract()
     extracted_max = cubeviz_helper.get_data("Spectrum (mean)").max()
-    assert_allclose(extracted_max.value, 2.836957E-18)
+    assert_allclose(extracted_max.value, 2.836957E-18, rtol=1E-5)
     assert extracted_max.unit == u.Unit("erg / Angstrom s cm**2 pix**2")