diff --git a/ArduPlane/ReleaseNotes.txt b/ArduPlane/ReleaseNotes.txt
index 245d131a32..e1e097ae4e 100644
--- a/ArduPlane/ReleaseNotes.txt
+++ b/ArduPlane/ReleaseNotes.txt
@@ -1,3 +1,8 @@
+Release 5.1.3 29th May 2024
+------------------------------
+- Volanti-M5 CPN added Range Finder Support
+- workflow: Carbonix_build: push data to AWS S3
+
 Release 5.1.2 6th May 2024
 ------------------------------
 - .github: added no crystal build for Carbonix AP_Periph boards
diff --git a/libraries/AP_Common/AP_FWVersionDefine.h b/libraries/AP_Common/AP_FWVersionDefine.h
index 1b00045c80..11deb56d86 100644
--- a/libraries/AP_Common/AP_FWVersionDefine.h
+++ b/libraries/AP_Common/AP_FWVersionDefine.h
@@ -24,7 +24,7 @@
 #include <AP_Vehicle/AP_Vehicle_Type.h>
 
 #ifdef CARBOPILOT
-#define AP_CUSTOM_FIRMWARE_STRING "CxPilot 5.1.2"
+#define AP_CUSTOM_FIRMWARE_STRING "CxPilot 5.1.3"
 #endif
 
 /*