diff --git a/src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.pyi b/src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.pyi
index ce2f11e65a..d411861f9a 100644
--- a/src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.pyi
+++ b/src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.pyi
@@ -363,6 +363,13 @@ class Iterator:
     def unit_magnitude(self): ...
     def unit_name(self): ...
 
+class JsonSerializer:
+    JSON_DIALECT_CREOOX : Any
+    def finalize(self): ...
+    def ready(self): ...
+    def setFile(self, arg2): ...
+    def writeHeader(self): ...
+
 class OpaqueCoordinate_3:
     def get(self, i): ...
     def set(self, i, n): ...
@@ -591,10 +598,6 @@ class XmlSerializer:
     def setFile(self, arg2): ...
     def writeHeader(self): ...
 
-class XmlSerializerFactory:
-    @staticmethod
-    def implementations(): ...
-
 class _SwigNonDynamicMeta(type): ...
 
 class abstract_arrangement:
diff --git a/src/ifcwrap/IfcPython.i b/src/ifcwrap/IfcPython.i
index 689f9acfbf..db772ba26e 100644
--- a/src/ifcwrap/IfcPython.i
+++ b/src/ifcwrap/IfcPython.i
@@ -162,6 +162,10 @@
 %ignore MaxOffset;
 %ignore MaxOffsetDeviation;
 %ignore ApplyOffset;
+%ignore SeparateZUpNode;
+
+%ignore XmlSerializerFactory;
+%ignore JsonSerializerFactory;
 
 // Triangulated representation helper struct
 %ignore EdgeKey;