diff --git a/rdmo/__init__.py b/rdmo/__init__.py
index 13bfa20ff..76bf2510a 100644
--- a/rdmo/__init__.py
+++ b/rdmo/__init__.py
@@ -1,5 +1,5 @@
 __title__ = "rdmo"
-__version__ = "1.11.0"
+__version__ = "2.0.0rc1"
 __author__ = "RDMO Arbeitsgemeinschaft"
 __email__ = "rdmo-team@listserv.dfn.de"
 __license__ = "Apache-2.0"