diff --git a/tests/test_flip_image.py b/tests/test_flip_image.py
index e247f337436ae3dd08b5c0f3552a0413ace83944..9b0719acd5ae34ee4eeb1be9b5e2bc28be90ec46 100644
--- a/tests/test_flip_image.py
+++ b/tests/test_flip_image.py
@@ -36,9 +36,9 @@ class FlipImageTestCase(unittest.TestCase):
             delimiter=",",
             dtype=int,
         )
-        self.assertEqual(
-            flip_image(image_input),
-            image_answer,
+        self.assertLess(
+            np.linalg.norm(flip_image(image_input) - image_answer),
+            1e-6,
             "Test flip image on server failed",
         )