diff --git a/configure.in b/configure.in
index 86af80da57..1f81bf129d 100644
--- a/configure.in
+++ b/configure.in
@@ -13,8 +13,8 @@ AC_PREREQ(2.62)
 
 m4_define([gtk_major_version], [2])
 m4_define([gtk_minor_version], [24])
-m4_define([gtk_micro_version], [8])
-m4_define([gtk_interface_age], [8])
+m4_define([gtk_micro_version], [9])
+m4_define([gtk_interface_age], [9])
 m4_define([gtk_binary_age],
           [m4_eval(100 * gtk_minor_version + gtk_micro_version)])
 m4_define([gtk_version],