Version 1.0.13 placeholder

doc/build/changelog.rst

diff --git a/doc/build/changelog.rst b/doc/build/changelog.rst
index f5e93d9..6990d90 100644
--- a/doc/build/changelog.rst
+++ b/doc/build/changelog.rst
@@ -6,6 +6,10 @@
 ===
 
 .. changelog::
+    :version: 1.0.13
+    :include_notes_from: unreleased
+
+.. changelog::
     :version: 1.0.12
     :released: Wed Jun 5 2019
 

mako/__init__.py

diff --git a/mako/__init__.py b/mako/__init__.py
index dedc58e..2ce0821 100644
--- a/mako/__init__.py
+++ b/mako/__init__.py
@@ -5,4 +5,4 @@
 # the MIT License: http://www.opensource.org/licenses/mit-license.php
 
 
-__version__ = '1.0.12'
+__version__ = '1.0.13'