diff --git a/boards/ezurio/bl54l15_dvk/bl54l15_dvk_nrf54l10_cpuapp_ns.dts b/boards/ezurio/bl54l15_dvk/bl54l15_dvk_nrf54l10_cpuapp_ns.dts
index 02d900390cc..39a986ae2b6 100644
--- a/boards/ezurio/bl54l15_dvk/bl54l15_dvk_nrf54l10_cpuapp_ns.dts
+++ b/boards/ezurio/bl54l15_dvk/bl54l15_dvk_nrf54l10_cpuapp_ns.dts
@@ -59,6 +59,9 @@
 };
 
 &cpuapp_rram {
+	/* TODO: revert this hack when TF-M update is available that fixes partition sizes */
+	reg = <0x0 DT_SIZE_K(1022)>;
+
 	partitions {
 		compatible = "fixed-partitions";
 		#address-cells = <1>;
diff --git a/boards/nordic/nrf54l15dk/nrf54l15dk_nrf54l10_cpuapp_ns.dts b/boards/nordic/nrf54l15dk/nrf54l15dk_nrf54l10_cpuapp_ns.dts
index f1aa851ed2d..cd644d845d5 100644
--- a/boards/nordic/nrf54l15dk/nrf54l15dk_nrf54l10_cpuapp_ns.dts
+++ b/boards/nordic/nrf54l15dk/nrf54l15dk_nrf54l10_cpuapp_ns.dts
@@ -58,6 +58,9 @@
 };
 
 &cpuapp_rram {
+	/* TODO: revert this hack when TF-M update is available that fixes partition sizes */
+	reg = <0x0 DT_SIZE_K(1022)>;
+
 	partitions {
 		compatible = "fixed-partitions";
 		#address-cells = <1>;