diff --git a/jupyter_releaser/__init__.py b/jupyter_releaser/__init__.py
index 7a1dead4..e230d639 100644
--- a/jupyter_releaser/__init__.py
+++ b/jupyter_releaser/__init__.py
@@ -1,3 +1,3 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
-__version__ = "1.2.1"
+__version__ = "1.3.0.dev0"