diff --git a/examples/mach_tutorial_wing/benchmark/benchmark_mach_tutorial.py b/examples/mach_tutorial_wing/benchmark/benchmark_mach_tutorial.py
index 09c8c32b8..8f72a4723 100644
--- a/examples/mach_tutorial_wing/benchmark/benchmark_mach_tutorial.py
+++ b/examples/mach_tutorial_wing/benchmark/benchmark_mach_tutorial.py
@@ -14,14 +14,14 @@
 # Reference values for eval functions
 FUNC_REF = {
     "StructAnalysis_compliance": 155444.88138037617,
-    "StructAnalysis_l_skin_ksFailure": 0.6688691183266002,
+    "StructAnalysis_l_skin_ksFailure": 0.6688752934181855,
     "StructAnalysis_l_skin_mass": 1056.704174594214,
     "StructAnalysis_mass": 3196.8719514874,
-    "StructAnalysis_rib_ksFailure": 0.25350286472639316,
+    "StructAnalysis_rib_ksFailure": 0.25350306610310425,
     "StructAnalysis_rib_mass": 686.2303380471093,
-    "StructAnalysis_spar_ksFailure": 0.6336086764475523,
+    "StructAnalysis_spar_ksFailure": 0.6336086764052882,
     "StructAnalysis_spar_mass": 400.06656937882445,
-    "StructAnalysis_u_skin_ksFailure": 0.46502733574612126,
+    "StructAnalysis_u_skin_ksFailure": 0.4650470864089127,
     "StructAnalysis_u_skin_mass": 1053.8708694672512,
     "AdjCon_L_SKIN_panelThicknessAdj": np.zeros(21),
     "AdjCon_L_SKIN_stiffenerHeightAdj": np.zeros(21),