diff --git a/samples/sid_end_device/Kconfig.sysbuild b/samples/sid_end_device/Kconfig.sysbuild
index e68e070ef..11639dd90 100644
--- a/samples/sid_end_device/Kconfig.sysbuild
+++ b/samples/sid_end_device/Kconfig.sysbuild
@@ -13,6 +13,11 @@ endchoice
 
 if BOOTLOADER_MCUBOOT
 
+# Downgrade prevention
+choice MCUBOOT_MODE
+	default MCUBOOT_MODE_OVERWRITE_ONLY
+endchoice
+
 config DFU_MULTI_IMAGE_PACKAGE_BUILD
 	default y
 
@@ -27,10 +32,6 @@ if (BOARD_NRF5340DK_NRF5340_CPUAPP || BOARD_THINGY53_NRF5340_CPUAPP)
 config MCUBOOT_UPDATEABLE_IMAGES
 	default 2
 
-choice MCUBOOT_MODE
-	default MCUBOOT_MODE_OVERWRITE_ONLY
-endchoice
-
 choice BOOT_SIGNATURE_TYPE
 	default BOOT_SIGNATURE_TYPE_RSA
 endchoice
diff --git a/samples/sid_end_device/sysbuild/mcuboot/prj.conf b/samples/sid_end_device/sysbuild/mcuboot/prj.conf
index a7b007d31..7c92c668c 100644
--- a/samples/sid_end_device/sysbuild/mcuboot/prj.conf
+++ b/samples/sid_end_device/sysbuild/mcuboot/prj.conf
@@ -6,7 +6,10 @@
 
 CONFIG_MAIN_STACK_SIZE=10240
 
-CONFIG_BOOT_SWAP_SAVE_ENCTLV=n
+# Downgrade prevention
+CONFIG_BOOT_SWAP_USING_MOVE=n
+CONFIG_BOOT_UPGRADE_ONLY=y
+
 CONFIG_BOOT_BOOTSTRAP=n
 CONFIG_PM=n