diff --git a/configure.ac b/configure.ac
index 4fac7b27..aca3c56e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_PREREQ([2.63])
 
 m4_define([MAJOR_VERSION], 2)
-m4_define([MINOR_VERSION], 12)
+m4_define([MINOR_VERSION], 13)
 m4_define([MICRO_VERSION], 0)
 
 AC_INIT([libxml2],[MAJOR_VERSION.MINOR_VERSION.MICRO_VERSION])