diff --git a/configure.ac b/configure.ac
index 59814d3..f90ceac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([Zenity],[3.16.3],[http://bugzilla.gnome.org/enter_bug.cgi?product=zenity],[zenity])
+AC_INIT([Zenity],[3.18.0],[http://bugzilla.gnome.org/enter_bug.cgi?product=zenity],[zenity])
 
 AC_PREREQ([2.63])