diff --git a/openslides/__init__.py b/openslides/__init__.py
index 3bef747db..d182ac0e6 100644
--- a/openslides/__init__.py
+++ b/openslides/__init__.py
@@ -1,3 +1,3 @@
 __author__ = 'OpenSlides Team <support@openslides.org>'
 __description__ = 'Presentation and assembly system'
-__version__ = '2.1b4'
+__version__ = '2.1b5-dev'