diff --git a/CHANGES.rst b/CHANGES.rst
index d2f868441024df99fed1ed7fe4d40e24c2182262..ac967e07a270a3b022b949f58a229f2c2a42ff71 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -4,6 +4,12 @@ Changelog
 This is a record of changes made between each Mutalyzer release.
 
 
+Version 2.0.13
+--------------
+
+Release date to be decided.
+
+
 Version 2.0.12
 --------------
 
diff --git a/mutalyzer/__init__.py b/mutalyzer/__init__.py
index d03edbad8f3827b68b26b0de8914d61cb1c4ed47..f79cf22d3e6de0ccaf674d122b6b7389257cffe5 100644
--- a/mutalyzer/__init__.py
+++ b/mutalyzer/__init__.py
@@ -21,7 +21,7 @@ from __future__ import unicode_literals
 # [1] http://peak.telecommunity.com/DevCenter/setuptools#specifying-your-project-s-version
 # [2] http://semver.org/
 
-__version_info__ = ('2', '0', '12')
+__version_info__ = ('2', '0', '13', 'dev')
 __date__ = '30 Sep 2015'