diff --git a/meta-digi-arm/conf/machine/ccmp13-dvk.conf b/meta-digi-arm/conf/machine/ccmp13-dvk.conf
index 75ecea431..9426c7510 100644
--- a/meta-digi-arm/conf/machine/ccmp13-dvk.conf
+++ b/meta-digi-arm/conf/machine/ccmp13-dvk.conf
@@ -96,16 +96,6 @@ WKS_FILE += "ccmp1-256MB.wks.in"
 # For populate_sdk, gcc-arm-none-eabi_9 has a python2 dependency, so we remove it.
 ST_TOOLS_FOR_SDK:remove = "nativesdk-gcc-arm-none-eabi"
 
-# =========================================================================
-# flashlayout
-# =========================================================================
-# Define the config labels to use to generate flashlayout file
-
-# =========================================================================
-# extlinux configuration
-# =========================================================================
-# As example, modify the default boot config for each target to M4 config
-
 # =========================================================================
 # Debug trace
 # =========================================================================
@@ -113,8 +103,9 @@ ST_TOOLS_FOR_SDK:remove = "nativesdk-gcc-arm-none-eabi"
 ST_DEBUG_TRACE = "0"
 
 # =========================================================================
-# Flashlayouts
+# Signing configuration
 # =========================================================================
+SIGN_HEADER_VERSION_stm32mp13 ?= "2.0"
 
 # =========================================================================
 # DEY settings
diff --git a/meta-digi-arm/conf/machine/ccmp15-dvk.conf b/meta-digi-arm/conf/machine/ccmp15-dvk.conf
index d54090031..0fc721cf3 100644
--- a/meta-digi-arm/conf/machine/ccmp15-dvk.conf
+++ b/meta-digi-arm/conf/machine/ccmp15-dvk.conf
@@ -112,16 +112,6 @@ WKS_FILES += " \
 # For populate_sdk, gcc-arm-none-eabi_9 has a python2 dependency, so we remove it.
 ST_TOOLS_FOR_SDK:remove = "nativesdk-gcc-arm-none-eabi"
 
-# =========================================================================
-# flashlayout
-# =========================================================================
-# Define the config labels to use to generate flashlayout file
-
-# =========================================================================
-# extlinux configuration
-# =========================================================================
-# As example, modify the default boot config for each target to M4 config
-
 # =========================================================================
 # Debug trace
 # =========================================================================
@@ -129,8 +119,9 @@ ST_TOOLS_FOR_SDK:remove = "nativesdk-gcc-arm-none-eabi"
 ST_DEBUG_TRACE = "0"
 
 # =========================================================================
-# Flashlayouts
+# Signing configuration
 # =========================================================================
+SIGN_HEADER_VERSION_stm32mp15 ?= "1.0"
 
 # =========================================================================
 # DEY settings
diff --git a/meta-digi-arm/conf/machine/ccmp25-dvk.conf b/meta-digi-arm/conf/machine/ccmp25-dvk.conf
index 5030ce62e..c37e43b4e 100644
--- a/meta-digi-arm/conf/machine/ccmp25-dvk.conf
+++ b/meta-digi-arm/conf/machine/ccmp25-dvk.conf
@@ -118,6 +118,14 @@ WKS_FILES += " \
     ccmp2-1GB.wks.in \
 "
 
+# =========================================================================
+# Signing configuration
+# =========================================================================
+SIGN_HEADER_VERSION_stm32mp25 ?= "2.2"
+
+# =========================================================================
+# DEY settings
+# =========================================================================
 # Wireless external module
 HAS_WIFI_VIRTWLANS = "true"