diff --git a/compose/__init__.py b/compose/__init__.py
index 2c426c7814..2de2a7f8b8 100644
--- a/compose/__init__.py
+++ b/compose/__init__.py
@@ -1,4 +1,4 @@
 from __future__ import unicode_literals
 from .service import Service  # noqa:flake8
 
-__version__ = '1.2.0'
+__version__ = '1.3.0dev'