diff --git a/configure.ac b/configure.ac
index 24110386b4..cbe5a2bff5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,8 +10,8 @@
 
 m4_define([gtk_major_version], [3])
 m4_define([gtk_minor_version], [22])
-m4_define([gtk_micro_version], [19])
-m4_define([gtk_interface_age], [19])
+m4_define([gtk_micro_version], [20])
+m4_define([gtk_interface_age], [20])
 m4_define([gtk_binary_age],
           [m4_eval(100 * gtk_minor_version + gtk_micro_version)])
 m4_define([gtk_version],