diff --git a/doc/changelog.d/669.documentation.md b/doc/changelog.d/669.documentation.md
new file mode 100644
index 000000000..1cde8c547
--- /dev/null
+++ b/doc/changelog.d/669.documentation.md
@@ -0,0 +1 @@
+Fix: updated get_stackup_props() to have improveStackupModelEnabled in the response
diff --git a/pyproject.toml b/pyproject.toml
index a74bf772c..117bb9aea 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ classifiers = [
 ]
 
 dependencies = [
-    "ansys-api-sherlock==0.1.51",
+    "ansys-api-sherlock==0.1.52",
     "grpcio>=1.17, <1.68.0",
     "protobuf>=3.20",
     "pydantic>=2.9.2",
diff --git a/src/ansys/sherlock/core/types/stackup_types.py b/src/ansys/sherlock/core/types/stackup_types.py
index f35b1e204..3e1aeb5c1 100644
--- a/src/ansys/sherlock/core/types/stackup_types.py
+++ b/src/ansys/sherlock/core/types/stackup_types.py
@@ -20,3 +20,4 @@ def __init__(self, properties: SherlockStackupService_pb2.GetStackupPropsRespons
         self.ctez = properties.ctEz
         self.exy = properties.exy
         self.ez = properties.ez
+        self.improve_stackup_model_enabled = properties.improveStackupModelEnabled
diff --git a/tests/test_stackup.py b/tests/test_stackup.py
index 4648008a7..4792133c8 100644
--- a/tests/test_stackup.py
+++ b/tests/test_stackup.py
@@ -611,16 +611,34 @@ def helper_test_get_stackup_props(stackup):
                 "Main Board",
             )
 
-            assert (
-                stackup_properties.board_dimension == "190.3171 x 114.3076 mm  [7.4928 x 4.5003 in]"
-            ), "Board dimension"
-            assert stackup_properties.board_thickness == "2.091 mm  [82.3 mil]", "Board thickness"
-            assert stackup_properties.density == "2.0264 g/cc", "Density"
-            assert stackup_properties.conductor_layers_cnt == "6", "Conductor layers count"
-            assert stackup_properties.ctexy == "18.618 ppm/C", "CTExy"
-            assert stackup_properties.ctez == "60.821 ppm/C", "CTEz"
-            assert stackup_properties.exy == "25,420 MPa", "Exy"
-            assert stackup_properties.ez == "6,939 MPa", "Ez"
+            if stackup_properties.improve_stackup_model_enabled:
+                assert (
+                    stackup_properties.board_dimension
+                    == "190.3171 x 114.3076 mm  [7.4928 x 4.5003 in]"
+                ), "Board dimension"
+                assert (
+                    stackup_properties.board_thickness == "2.091 mm  [82.3 mil]"
+                ), "Board thickness"
+                assert stackup_properties.density == "2.0264 g/cc", "Density"
+                assert stackup_properties.conductor_layers_cnt == "6", "Conductor layers count"
+                assert stackup_properties.ctexy == "18.556 ppm/C", "CTExy"
+                assert stackup_properties.ctez == "60.821 ppm/C", "CTEz"
+                assert stackup_properties.exy == "24,865 MPa", "Exy"
+                assert stackup_properties.ez == "6,939 MPa", "Ez"
+            else:
+                assert (
+                    stackup_properties.board_dimension
+                    == "190.3171 x 114.3076 mm  [7.4928 x 4.5003 in]"
+                ), "Board dimension"
+                assert (
+                    stackup_properties.board_thickness == "2.091 mm  [82.3 mil]"
+                ), "Board thickness"
+                assert stackup_properties.density == "2.0264 g/cc", "Density"
+                assert stackup_properties.conductor_layers_cnt == "6", "Conductor layers count"
+                assert stackup_properties.ctexy == "18.618 ppm/C", "CTExy"
+                assert stackup_properties.ctez == "60.821 ppm/C", "CTEz"
+                assert stackup_properties.exy == "25,420 MPa", "Exy"
+                assert stackup_properties.ez == "6,939 MPa", "Ez"
         except SherlockGetLayerCountError as e:
             pytest.fail(str(e))