diff --git a/firmware/AtomBusMon.c b/firmware/AtomBusMon.c
index 28f9f45..08f1965 100644
--- a/firmware/AtomBusMon.c
+++ b/firmware/AtomBusMon.c
@@ -14,7 +14,7 @@
  * VERSION and NAME are used in the start-up message
  ********************************************************/
 
-#define VERSION "0.990"
+#define VERSION "0.991"
 
 #if defined(CPU_Z80)
   #define NAME "ICE-Z80"