diff --git a/project/ble_peripheral/ble_app_bladder_patch/main.h b/project/ble_peripheral/ble_app_bladder_patch/main.h
index 97e672d..4b2506e 100644
--- a/project/ble_peripheral/ble_app_bladder_patch/main.h
+++ b/project/ble_peripheral/ble_app_bladder_patch/main.h
@@ -36,8 +36,9 @@
 *      : Improved low-battery detection and automatic power-off handling.
 *      : Updated BLE security, bonding, and advertising timeout behavior.
 *      : Cleaned up command parsing and removed unused project files.
+*   - VBTFW0111 260421 jhChun
 ------------------------------------------------------------------------- */
-#define FIRMWARE_VERSION                "VBTFW0103"
+#define FIRMWARE_VERSION                "VBTFW0111"
 
 /*==============================================================================
  * Data Length Constants