diff --git a/configure.in b/configure.in
index 5f92bdcb68..b394564141 100644
--- a/configure.in
+++ b/configure.in
@@ -12,7 +12,7 @@ AC_PREREQ(2.54)
 
 m4_define([gtk_major_version], [2])
 m4_define([gtk_minor_version], [17])
-m4_define([gtk_micro_version], [8])
+m4_define([gtk_micro_version], [9])
 m4_define([gtk_interface_age], [0])
 m4_define([gtk_binary_age],
           [m4_eval(100 * gtk_minor_version + gtk_micro_version)])