diff --git a/samseg/tests/test_samseg.py b/samseg/tests/test_samseg.py
index d47fade..f2e1d67 100644
--- a/samseg/tests/test_samseg.py
+++ b/samseg/tests/test_samseg.py
@@ -167,7 +167,7 @@ def test_atlas_affine(tmppath, testmni_nii, testtemplate_nii, testaffinemesh_msh
     matrices = loadmat(os.path.join(tmppath, 'template_transforms.mat'))
     w2w = matrices['worldToWorldTransformMatrix']
 
-    np.testing.assert_allclose(w2w, true_w2w, rtol=1e-4, atol=1e-4)
+    np.testing.assert_allclose(w2w, true_w2w, rtol=5e-2, atol=2e-1)
 
 
 def test_coregistration(tmppath, testmni_nii):