diff --git a/ArduCopter/version.h b/ArduCopter/version.h
index b1250c7473..c93e3cd5be 100644
--- a/ArduCopter/version.h
+++ b/ArduCopter/version.h
@@ -6,7 +6,7 @@
 
 #include "ap_version.h"
 
-#define THISFIRMWARE "ArduCopter V4.1.0-beta5"
+#define THISFIRMWARE "ArduCopter V4.1.0-beta6"
 
 // the following line is parsed by the autotest scripts
 #define FIRMWARE_VERSION 4,1,0,FIRMWARE_VERSION_TYPE_BETA