diff --git a/Changelog.rst b/Changelog.rst
index 03d0d31a..c419594f 100644
--- a/Changelog.rst
+++ b/Changelog.rst
@@ -3,6 +3,9 @@
 Changelog
 =========
 
+1.4.0 (dev)
+-----------
+
 1.3.0 (2014-12-31)
 ------------------
 
diff --git a/docs/conf.py b/docs/conf.py
index 0c45ae5a..94b5c3ed 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -50,9 +50,9 @@ copyright = u'2013, Honza Král'
 # built documents.
 #
 # The short X.Y version.
-version = '1.3.0'
+version = '1.4.0'
 # The full version, including alpha/beta/rc tags.
-release = '1.3.0'
+release = '1.4.0-dev'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/elasticsearch/__init__.py b/elasticsearch/__init__.py
index c809aed3..a9b93805 100644
--- a/elasticsearch/__init__.py
+++ b/elasticsearch/__init__.py
@@ -1,6 +1,6 @@
 from __future__ import absolute_import
 
-VERSION = (1, 3, 0)
+VERSION = (1, 4, 0, 'dev')
 __version__ = VERSION
 __versionstr__ = '.'.join(map(str, VERSION))
 
@@ -9,8 +9,7 @@ import sys
 if (2, 7) <= sys.version_info < (3, 2):
     # On Python 2.7 and Python3 < 3.2, install no-op handler to silence
     # `No handlers could be found for logger "elasticsearch"` message per
-    # <https://docs.python.org/2/howto/logging.html#configuring-logging-for-a-library>,
-    # <https://docs.python.org/3/howto/logging.html#configuring-logging-for-a-library>:
+    # <https://docs.python.org/2/howto/logging.html#configuring-logging-for-a-library>
     import logging
     logger = logging.getLogger('elasticsearch')
     logger.addHandler(logging.NullHandler())
diff --git a/setup.py b/setup.py
index dc28c4ff..61ad949b 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@ from setuptools import setup, find_packages
 import sys
 import os
 
-VERSION = (1, 3, 0)
+VERSION = (1, 4, 0, 'dev')
 __version__ = VERSION
 __versionstr__ = '.'.join(map(str, VERSION))