diff --git a/ChangeLog b/ChangeLog
index 26b620b6b..bc470f82d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2006-08-30  Matthias Clasen  <mclasen@redhat.com>
 
+	* Bump version
+
 	* === Released 2.12.3 ===
 
 	* NEWS: Updates
diff --git a/configure.in b/configure.in
index e444be353..bae0e5b2b 100644
--- a/configure.in
+++ b/configure.in
@@ -27,8 +27,8 @@ m4_include(m4macros/glib-gettext.m4)dnl
 #
 m4_define([glib_major_version], [2])
 m4_define([glib_minor_version], [12])
-m4_define([glib_micro_version], [3])
-m4_define([glib_interface_age], [3])
+m4_define([glib_micro_version], [4])
+m4_define([glib_interface_age], [4])
 m4_define([glib_binary_age],
           [m4_eval(100 * glib_minor_version + glib_micro_version)])
 m4_define([glib_version],