diff --git a/pyproject.toml b/pyproject.toml
index cf3958a97e..f7d46e627e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ classifiers = [
 
 # FIXME: add ansys-api-edb version
 dependencies = [
-    "ansys-api-edb==1.0.3",
+    "ansys-api-edb==1.0.4",
     "protobuf>=3.19.3,<4",
     "grpcio>=1.44.0"
 ]
diff --git a/src/ansys/edb/core/edb_defs.py b/src/ansys/edb/core/edb_defs.py
index 8507edbde3..43e46dcc60 100644
--- a/src/ansys/edb/core/edb_defs.py
+++ b/src/ansys/edb/core/edb_defs.py
@@ -15,7 +15,6 @@ class LayoutObjType(Enum):
     TERMINAL = layout_obj_pb2.TERM
     TERMINAL_INSTANCE = layout_obj_pb2.TERM_INST
     CELL_INSTANCE = layout_obj_pb2.CELL_INST
-    INST_ARRAY = layout_obj_pb2.INST_ARRAY
     LAYER = layout_obj_pb2.LAYER
     NET = layout_obj_pb2.NET
     PADSTACK = layout_obj_pb2.PADSTACK
diff --git a/src/ansys/edb/core/hierarchy/inst_array.py b/src/ansys/edb/core/hierarchy/inst_array.py
index 7a345fa390..4ec2dc222b 100644
--- a/src/ansys/edb/core/hierarchy/inst_array.py
+++ b/src/ansys/edb/core/hierarchy/inst_array.py
@@ -13,7 +13,7 @@ class InstArray(cell_instance.CellInstance):
     """Represents an instance array object."""
 
     __stub: InstArrayServiceStub = StubAccessor(StubType.inst_array)
-    layout_obj_type = LayoutObjType.INST_ARRAY
+    layout_obj_type = LayoutObjType.CELL_INSTANCE
 
     @classmethod
     def create(cls, layout, name, ref, orig, xaxis, yaxis, xcount, ycount):