diff --git a/configure.ac b/configure.ac
index f06f2027c..8568e451f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 # explicit defines for separate revision handling
 define(ver_major, 3)
-define(ver_minor, 12)
+define(ver_minor, 13)
 define(ver_micro, 0)
 define(rel_cycle, "ver_major.0")