diff --git a/packages/app/HISTORY.rst b/packages/app/HISTORY.rst
index f69ace2191a..47e0dd9ab2c 100644
--- a/packages/app/HISTORY.rst
+++ b/packages/app/HISTORY.rst
@@ -5,6 +5,12 @@ History
 
 .. to_doc
 
+---------------------
+20.9.1.dev0
+---------------------
+
+
+
 ---------------------
 20.9.0 (2020-10-15)
 ---------------------
diff --git a/packages/app/galaxy/project_galaxy_app.py b/packages/app/galaxy/project_galaxy_app.py
index 05f82135772..c596495f381 100644
--- a/packages/app/galaxy/project_galaxy_app.py
+++ b/packages/app/galaxy/project_galaxy_app.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-__version__ = '20.9.0'
+__version__ = '20.9.1.dev0'
 
 PROJECT_NAME = "galaxy-app"
 PROJECT_OWNER = PROJECT_USERAME = "galaxyproject"