diff --git a/src/ifcbimtester/examples/steps/aggregation.py b/src/ifcbimtester/examples/steps/aggregation.py
index 5cb14a8b9e..67435eee62 100644
--- a/src/ifcbimtester/examples/steps/aggregation.py
+++ b/src/ifcbimtester/examples/steps/aggregation.py
@@ -139,7 +139,7 @@ def check_if_element_exists_by_types_with_attribute_name(ifc_types, attribute_na
     assert not errors, "Errors occured:\n{}".format("\n".join(errors))
 
 
-class TableModel(object):
+class TableModel:
     """This class represents a table of data."""
 
     def __init__(self):
diff --git a/src/ifcsverchok/__init__.py b/src/ifcsverchok/__init__.py
index 97fe04c5e0..2296e1ce5a 100644
--- a/src/ifcsverchok/__init__.py
+++ b/src/ifcsverchok/__init__.py
@@ -293,7 +293,7 @@ class IFC_PT_write_file_panel(bpy.types.Panel):
 CLASSES = [IFC_Sv_UpdateCurrent, IFC_Sv_write_file, IFC_PT_write_file_panel]
 
 
-class SvExCategoryProvider(object):
+class SvExCategoryProvider:
     def __init__(self, identifier, menu):
         self.identifier = identifier
         self.menu = menu