diff --git a/ArduPlane/version.h b/ArduPlane/version.h
index e99834bb62..9d91d1fa15 100644
--- a/ArduPlane/version.h
+++ b/ArduPlane/version.h
@@ -6,10 +6,10 @@
 
 #include "ap_version.h"
 
-#define THISFIRMWARE "ArduPlane V4.0.0beta3"
+#define THISFIRMWARE "ArduPlane V4.0.0beta4"
 
 // the following line is parsed by the autotest scripts
-#define FIRMWARE_VERSION 4,0,0,FIRMWARE_VERSION_TYPE_BETA+2
+#define FIRMWARE_VERSION 4,0,0,FIRMWARE_VERSION_TYPE_BETA+3
 
 #define FW_MAJOR 4
 #define FW_MINOR 0