diff --git a/configs/stm32mp157c_dk2_defconfig b/configs/stm32mp157c_dk2_defconfig
index c48705b2fb..c923d2cd60 100644
--- a/configs/stm32mp157c_dk2_defconfig
+++ b/configs/stm32mp157c_dk2_defconfig
@@ -2,8 +2,8 @@
 BR2_arm=y
 BR2_cortex_a7=y
 
-# Linux headers same as kernel, a 5.13 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_13=y
+# Linux headers same as kernel, a 6.9 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_9=y
 
 # System configuration
 BR2_ROOTFS_OVERLAY="board/stmicroelectronics/stm32mp157c-dk2/overlay/"
@@ -12,11 +12,11 @@ BR2_ROOTFS_POST_IMAGE_SCRIPT="board/stmicroelectronics/common/stm32mp157/post-im
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.13"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.9.8"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/stmicroelectronics/stm32mp157c-dk2/linux.config"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
-BR2_LINUX_KERNEL_INTREE_DTS_NAME="stm32mp157c-dk2"
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="st/stm32mp157c-dk2"
 BR2_LINUX_KERNEL_INSTALL_TARGET=y
 
 # Filesystem
@@ -27,7 +27,8 @@ BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
 
 # Bootloaders
 BR2_TARGET_ARM_TRUSTED_FIRMWARE=y
-BR2_TARGET_ARM_TRUSTED_FIRMWARE_LATEST_LTS_2_8_VERSION=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION_VALUE="v2.9"
 BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="stm32mp1"
 BR2_TARGET_ARM_TRUSTED_FIRMWARE_FIP=y
 BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL31=y
@@ -39,11 +40,11 @@ BR2_TARGET_ARM_TRUSTED_FIRMWARE_NEEDS_DTC=y
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
 BR2_TARGET_UBOOT_CUSTOM_VERSION=y
-BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2023.04"
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2024.07"
 BR2_TARGET_UBOOT_BOARD_DEFCONFIG="stm32mp15_trusted"
-# BR2_TARGET_UBOOT_FORMAT_BIN is not set
 BR2_TARGET_UBOOT_NEEDS_PYLIBFDT=y
 BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
+# BR2_TARGET_UBOOT_FORMAT_BIN is not set
 BR2_TARGET_UBOOT_FORMAT_DTB=y
 BR2_TARGET_UBOOT_FORMAT_CUSTOM=y
 BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME="u-boot-nodtb.bin"