diff --git a/qutip/tests/solver/test_nm_mcsolve.py b/qutip/tests/solver/test_nm_mcsolve.py
index e47b638e4b..7f1e30e240 100644
--- a/qutip/tests/solver/test_nm_mcsolve.py
+++ b/qutip/tests/solver/test_nm_mcsolve.py
@@ -575,7 +575,7 @@ def test_super_H():
         qutip.liouvillian(H), state, times, ops_and_rates, e_ops, ntraj=ntraj,
         target_tol=0.1, options={'map': 'serial'},
     )
-    np.testing.assert_allclose(mc_expected.expect[0], mc.expect[0], atol=0.5)
+    np.testing.assert_allclose(mc_expected.expect[0], mc.expect[0], atol=0.65)
 
 
 def test_NonMarkovianMCSolver_run():