diff --git a/doc/conf.py b/doc/conf.py
index 520e241ad5..e7be391b09 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -48,9 +48,9 @@ copyright = (u'2008-2011, Bertrand Chenal, Cédric Krier, Ian Wilson, '
 # built documents.
 #
 # The short X.Y version.
-version = '4.0'
+version = '4.1'
 # The full version, including alpha/beta/rc tags.
-release = '4.0'
+release = '4.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/trytond/__init__.py b/trytond/__init__.py
index 44be7275df..0efdff13dd 100644
--- a/trytond/__init__.py
+++ b/trytond/__init__.py
@@ -5,7 +5,7 @@ import time
 import logging
 from email import charset
 
-__version__ = "4.0.0"
+__version__ = "4.1.0"
 logger = logging.getLogger(__name__)
 
 os.environ['TZ'] = 'UTC'