diff --git a/compose/__init__.py b/compose/__init__.py
index 8112b4e16..69c4e0e49 100644
--- a/compose/__init__.py
+++ b/compose/__init__.py
@@ -1,4 +1,4 @@
 from __future__ import absolute_import
 from __future__ import unicode_literals
 
-__version__ = '1.25.1'
+__version__ = '1.26.0dev'