diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index fbf2f7bfa..1aaf088ba 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -6,19 +6,13 @@ This project adheres to `Semantic Versioning`_ starting with version 0.11.0.
 
 .. _master-release:
 
-[Unreleased 0.13.0.aX] - `master`_
+[Unreleased 0.13.1aX] - `master`_
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 .. note:: This version is not yet released and is under active development.
 
 Added
 -----
-- Abstract Actions can now be subclassed
-- add warning in case of mismatched version of rasa_core and rasa_core_sdk
-- ``FormAction.from_trigger_intent`` allows slot extraction from message
-  triggering the FormAction
-- ``Tracker.active_form`` now includes ``trigger_message`` attribute to allow
-  access to message triggering the form
 
 Changed
 -------
@@ -29,6 +23,18 @@ Fixed
 Removed
 -------
 
+[0.13.0] - 2019-03-26
+^^^^^^^^^^^^^^^^^^^^^
+
+Added
+-----
+- Abstract Actions can now be subclassed
+- add warning in case of mismatched version of rasa_core and rasa_core_sdk
+- ``FormAction.from_trigger_intent`` allows slot extraction from message
+  triggering the FormAction
+- ``Tracker.active_form`` now includes ``trigger_message`` attribute to allow
+  access to message triggering the form
+
 [0.12.2] - 2019-02-17
 ^^^^^^^^^^^^^^^^^^^^^
 
diff --git a/rasa_core_sdk/version.py b/rasa_core_sdk/version.py
index be3598899..0086f7ab7 100644
--- a/rasa_core_sdk/version.py
+++ b/rasa_core_sdk/version.py
@@ -1,7 +1,6 @@
-from __future__ import unicode_literals
-from __future__ import print_function
-from __future__ import division
 from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
 
-
-__version__ = '0.13.0a1'
+__version__ = '0.13.0'