diff --git a/corepos/enum.py b/corepos/enum.py
index 55619d8..28e33ea 100644
--- a/corepos/enum.py
+++ b/corepos/enum.py
@@ -2,7 +2,7 @@
 ################################################################################
 #
 #  pyCOREPOS -- Python Interface to CORE POS
-#  Copyright © 2018-2019 Lance Edgar
+#  Copyright © 2018-2024 Lance Edgar
 #
 #  This file is part of pyCOREPOS.
 #
@@ -24,12 +24,14 @@
 CORE POS enumeration constants
 """
 
-from __future__ import unicode_literals, absolute_import
+from collections import OrderedDict
+from enum import Enum
 
-try:
-    from collections import OrderedDict
-except ImportError:
-    from ordereddict import OrderedDict
+
+class CoreDbType(str, Enum):
+    office_op = 'office_op'
+    office_trans = 'office_trans'
+    office_arch = 'office_arch'
 
 
 BATCH_DISCOUNT_TYPE_PRICE_CHANGE        = 0