diff --git a/pystencils_tests/test_interpolation.py b/pystencils_tests/test_interpolation.py
index 92f20a236dc86827567b2f68b501e32cffd67da5..8f35e1ce772386359161b88ef76f13973ef4b9e7 100644
--- a/pystencils_tests/test_interpolation.py
+++ b/pystencils_tests/test_interpolation.py
@@ -83,9 +83,9 @@ def test_scale_interpolation():
                          ['border',
                           'clamp',
                           pytest.param('warp', marks=pytest.mark.xfail(
-                              reason="Fails on newer SymPy version due to complex conjugate()")),
+                              reason="requires interpolation-refactoring branch")),
                           pytest.param('mirror', marks=pytest.mark.xfail(
-                              reason="Fails on newer SymPy version due to complex conjugate()")),
+                              reason="requires interpolation-refactoring branch")),
                           ])
 def test_rotate_interpolation(address_mode):
     """