diff --git a/configure.ac b/configure.ac
index 07a8326..aa0d28d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -61,8 +61,8 @@ dnl micro version = incremented when implementation-only
 dnl                 changes are made
 dnl ---
 JACK_MAJOR_VERSION=0
-JACK_MINOR_VERSION=121
-JACK_MICRO_VERSION=4
+JACK_MINOR_VERSION=122
+JACK_MICRO_VERSION=0
 
 dnl ---
 dnl HOWTO: updating the jack protocol version