diff --git a/tests/test_indexing/test_ebsd_refinement.py b/tests/test_indexing/test_ebsd_refinement.py
index 68a6f1b7..a1a31bb4 100644
--- a/tests/test_indexing/test_ebsd_refinement.py
+++ b/tests/test_indexing/test_ebsd_refinement.py
@@ -1220,6 +1220,7 @@ def test_refine_orientation_pc_pseudo_symmetry_scipy(self):
         # Global: Differential evolution
         _, _ = s.refine_orientation_projection_center(
             method="differential_evolution",
+            trust_region=[2, 2, 2, 0.05, 0.05, 0.05],
             navigation_mask=nav_mask,
             **ref_kw,
         )