diff --git a/Rover/version.h b/Rover/version.h
index e07e47ad59ec3..bc7214f0789d5 100644
--- a/Rover/version.h
+++ b/Rover/version.h
@@ -6,14 +6,14 @@
 
 #include "ap_version.h"
 
-#define THISFIRMWARE "ArduRover V4.5.2"
+#define THISFIRMWARE "ArduRover V4.5.3-beta1"
 
 // the following line is parsed by the autotest scripts
-#define FIRMWARE_VERSION 4,5,2,FIRMWARE_VERSION_TYPE_OFFICIAL
+#define FIRMWARE_VERSION 4,5,3,FIRMWARE_VERSION_TYPE_BETA
 
 #define FW_MAJOR 4
 #define FW_MINOR 5
-#define FW_PATCH 2
-#define FW_TYPE FIRMWARE_VERSION_TYPE_OFFICIAL
+#define FW_PATCH 3
+#define FW_TYPE FIRMWARE_VERSION_TYPE_BETA
 
 #include <AP_Common/AP_FWVersionDefine.h>