diff --git a/oletools/oleid.py b/oletools/oleid.py
index 53e8ca5..64e0ee4 100644
--- a/oletools/oleid.py
+++ b/oletools/oleid.py
@@ -17,7 +17,7 @@ http://www.decalage.info/python/oletools
 
 #=== LICENSE =================================================================
 
-# oleid is copyright (c) 2012-2019, Philippe Lagadec (http://www.decalage.info)
+# oleid is copyright (c) 2012-2021, Philippe Lagadec (http://www.decalage.info)
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -58,8 +58,9 @@ from __future__ import print_function
 # 2018-09-11 v0.54 PL: - olefile is now a dependency
 # 2018-10-19       CH: - accept olefile as well as filename, return Indicators,
 #                        improve encryption detection for ppt
+# 2021-05-07 v0.56.2 MN: - fixed bug in check_excel (issue #584, PR #585)
 
-__version__ = '0.54'
+__version__ = '0.56.2.dev3'
 
 
 #------------------------------------------------------------------------------