diff --git a/tests/test_CWLKernel.py b/tests/test_CWLKernel.py
index 5bc9e76..bb33fde 100644
--- a/tests/test_CWLKernel.py
+++ b/tests/test_CWLKernel.py
@@ -758,7 +758,7 @@ def test_sample_csv(self):
 
         shape = pd.read_html(responses[-1][0][2]['data']['text/html'], header=None)[0].shape
         print('shape:', shape)
-        self.assertAlmostEqual(shape[0], 4, delta=3)
+        self.assertAlmostEqual(shape[0], 4, delta=4)
         self.assertEqual(shape[1], 20)