diff --git a/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.mk b/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.mk
index 349ce46d79..2e6ce1fe8f 100644
--- a/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.mk
+++ b/ports/stm32/boards/NUCLEO_WB55/mpconfigboard.mk
@@ -6,7 +6,7 @@ STARTUP_FILE = $(STM32LIB_CMSIS_BASE)/Source/Templates/gcc/startup_stm32wb55xx_c
 ifeq ($(USE_MBOOT),1)
 # When using Mboot all the text goes together after the bootloader
 LD_FILES = boards/stm32wb55xg.ld boards/common_bl.ld
-TEXT0_ADDR = 0x08004000
+TEXT0_ADDR = 0x08008000
 else
 # When not using Mboot the text goes at the start of flash
 LD_FILES = boards/stm32wb55xg.ld boards/common_basic.ld
diff --git a/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.mk b/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.mk
index 349ce46d79..2e6ce1fe8f 100644
--- a/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.mk
+++ b/ports/stm32/boards/USBDONGLE_WB55/mpconfigboard.mk
@@ -6,7 +6,7 @@ STARTUP_FILE = $(STM32LIB_CMSIS_BASE)/Source/Templates/gcc/startup_stm32wb55xx_c
 ifeq ($(USE_MBOOT),1)
 # When using Mboot all the text goes together after the bootloader
 LD_FILES = boards/stm32wb55xg.ld boards/common_bl.ld
-TEXT0_ADDR = 0x08004000
+TEXT0_ADDR = 0x08008000
 else
 # When not using Mboot the text goes at the start of flash
 LD_FILES = boards/stm32wb55xg.ld boards/common_basic.ld
diff --git a/ports/stm32/boards/stm32wb55xg.ld b/ports/stm32/boards/stm32wb55xg.ld
index 841c32b8a0..9b1e5bca14 100644
--- a/ports/stm32/boards/stm32wb55xg.ld
+++ b/ports/stm32/boards/stm32wb55xg.ld
@@ -6,7 +6,7 @@
 MEMORY
 {
     FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 512K /* sectors 0-127 */
-    FLASH_APP (rx)  : ORIGIN = 0x08004000, LENGTH = 496K /* sectors 4-127 */
+    FLASH_APP (rx)  : ORIGIN = 0x08008000, LENGTH = 480K /* sectors 8-127 */
     FLASH_FS (r)    : ORIGIN = 0x08080000, LENGTH = 256K /* sectors 128-191 */
     RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 192K /* SRAM1 */
     RAM2A (xrw)     : ORIGIN = 0x20030000, LENGTH = 10K  /* SRAM2A */