diff --git a/mutalyzer/__init__.py b/mutalyzer/__init__.py
index 312809ee8b02bb65823bbba02921105bf49890d4..ecb1b4093254c19bca74b3812d0e7b79be61fc32 100644
--- a/mutalyzer/__init__.py
+++ b/mutalyzer/__init__.py
@@ -20,9 +20,9 @@ import os
 #
 # [1] http://peak.telecommunity.com/DevCenter/setuptools#specifying-your-project-s-version
 
-RELEASE = True
+RELEASE = False
 
-__version_info__ = ('2', '0', 'beta-30')
+__version_info__ = ('2', '0', 'beta-31', 'dev')
 __date__ = '18 Feb 2014'