diff --git a/packages/objectstore/HISTORY.rst b/packages/objectstore/HISTORY.rst
index 2b1b2ac05d8..7879816905a 100644
--- a/packages/objectstore/HISTORY.rst
+++ b/packages/objectstore/HISTORY.rst
@@ -5,6 +5,12 @@ History
 
 .. to_doc
 
+---------------------
+20.5.1.dev0
+---------------------
+
+
+
 ---------------------
 20.5.0 (2020-07-04)
 ---------------------
diff --git a/packages/objectstore/galaxy/project_galaxy_objectstore.py b/packages/objectstore/galaxy/project_galaxy_objectstore.py
index d2435ecdf12..cc83b9e9564 100644
--- a/packages/objectstore/galaxy/project_galaxy_objectstore.py
+++ b/packages/objectstore/galaxy/project_galaxy_objectstore.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-__version__ = '20.5.0'
+__version__ = '20.5.1.dev0'
 
 PROJECT_NAME = "galaxy-objectstore"
 PROJECT_OWNER = PROJECT_USERAME = "galaxyproject"