diff --git a/CHANGES.rst b/CHANGES.rst
index 902c4c29..fe1498a4 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,9 @@
 CHANGES
 =======
 
+master (unreleased)
+-------------------
+
 2.6.1 (2017.01.11)
 ------------------
 
diff --git a/model_utils/__init__.py b/model_utils/__init__.py
index 318a042d..0f6b5ead 100644
--- a/model_utils/__init__.py
+++ b/model_utils/__init__.py
@@ -1,4 +1,4 @@
 from .choices import Choices
 from .tracker import FieldTracker, ModelTracker
 
-__version__ = '2.6.1'
+__version__ = '2.6.2.a1'