--- a/eric6/DocumentationTools/IndexGenerator.py	Fri Apr 09 18:13:36 2021 +0200
+++ b/eric6/DocumentationTools/IndexGenerator.py	Fri Apr 09 18:38:01 2021 +0200
@@ -14,7 +14,7 @@
 from Utilities import joinext
 
 
-class IndexGenerator(object):
+class IndexGenerator:
     """
     Class implementing the index generator for the builtin documentation
     generator.