diff --git a/CHANGES.md b/CHANGES.md
index 3bad3214..3bcc5955 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,10 @@
 # python-markdown2 Changelog
 
+## python-markdown2 2.4.13 (not yet released)
+
+(nothing yet)
+
+
 ## python-markdown2 2.4.12
 
 - [pull #547] Update `markdown-in-html` extra to handle markdown on same line as HTML (#546)
diff --git a/lib/markdown2.py b/lib/markdown2.py
index c0db9874..f9cc64d3 100755
--- a/lib/markdown2.py
+++ b/lib/markdown2.py
@@ -106,7 +106,7 @@
 #   not yet sure if there implications with this. Compare 'pydoc sre'
 #   and 'perldoc perlre'.
 
-__version_info__ = (2, 4, 12)
+__version_info__ = (2, 4, 13)
 __version__ = '.'.join(map(str, __version_info__))
 __author__ = "Trent Mick"