diff --git a/ChangeLog b/ChangeLog
index 672a676..4aad8fa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2005-08-31  Lucas Rocha  <lucasr@cvs.gnome.org>
+
+	* configure.in: version bump for development
+	releases (2.13.x).
+
 2005-08-23  Lucas Rocha  <lucasr@cvs.gnome.org>
 
 	* configure.in: post release version bump.
diff --git a/configure.in b/configure.in
index 116938a..879beb8 100644
--- a/configure.in
+++ b/configure.in
@@ -1,7 +1,7 @@
 AC_PREREQ(2.53)
 AC_INIT(src)
 AM_CONFIG_HEADER(config.h)
-AM_INIT_AUTOMAKE(zenity, 2.12.0)
+AM_INIT_AUTOMAKE(zenity, 2.13.0)
 
 GNOME_DOC_INIT