diff --git a/hw/bsp/ra/boards/ra4m1_ek/fsp_cfg/bsp/bsp_cfg.h b/hw/bsp/ra/boards/ra4m1_ek/fsp_cfg/bsp/bsp_cfg.h
index f0577b702..11d5795df 100644
--- a/hw/bsp/ra/boards/ra4m1_ek/fsp_cfg/bsp/bsp_cfg.h
+++ b/hw/bsp/ra/boards/ra4m1_ek/fsp_cfg/bsp/bsp_cfg.h
@@ -12,7 +12,7 @@
 #define BSP_CFG_BOOT_IMAGE (1)
 #endif
 #define BSP_CFG_MCU_VCC_MV (3300)
-#define BSP_CFG_STACK_MAIN_BYTES (0x400)
+#define BSP_CFG_STACK_MAIN_BYTES (0x800)
 #define BSP_CFG_HEAP_BYTES (0x1000)
 #define BSP_CFG_PARAM_CHECKING_ENABLE (1)
 #define BSP_CFG_ASSERT (0)
diff --git a/hw/bsp/ra/boards/ra4m3_ek/fsp_cfg/bsp/bsp_cfg.h b/hw/bsp/ra/boards/ra4m3_ek/fsp_cfg/bsp/bsp_cfg.h
index 47de7747d..862ec25b7 100644
--- a/hw/bsp/ra/boards/ra4m3_ek/fsp_cfg/bsp/bsp_cfg.h
+++ b/hw/bsp/ra/boards/ra4m3_ek/fsp_cfg/bsp/bsp_cfg.h
@@ -27,8 +27,8 @@ extern "C" {
 #define BSP_CFG_BOOT_IMAGE (1)
 #endif
 #define BSP_CFG_MCU_VCC_MV (3300)
-#define BSP_CFG_STACK_MAIN_BYTES (0x400)
-#define BSP_CFG_HEAP_BYTES (0x400)
+#define BSP_CFG_STACK_MAIN_BYTES (0x800)
+#define BSP_CFG_HEAP_BYTES (0x800)
 #define BSP_CFG_PARAM_CHECKING_ENABLE (1)
 #define BSP_CFG_ASSERT (0)
 #define BSP_CFG_ERROR_LOG (0)
diff --git a/hw/bsp/ra/boards/ra6m1_ek/fsp_cfg/bsp/bsp_cfg.h b/hw/bsp/ra/boards/ra6m1_ek/fsp_cfg/bsp/bsp_cfg.h
index b5ed53a3b..772e5e5b1 100644
--- a/hw/bsp/ra/boards/ra6m1_ek/fsp_cfg/bsp/bsp_cfg.h
+++ b/hw/bsp/ra/boards/ra6m1_ek/fsp_cfg/bsp/bsp_cfg.h
@@ -31,7 +31,7 @@ extern "C" {
 #endif
 
 #define BSP_CFG_MCU_VCC_MV (3300)
-#define BSP_CFG_STACK_MAIN_BYTES (0x400)
+#define BSP_CFG_STACK_MAIN_BYTES (0x1000)
 #define BSP_CFG_HEAP_BYTES (0x1000)
 #define BSP_CFG_PARAM_CHECKING_ENABLE (1)
 #define BSP_CFG_ASSERT (0)
diff --git a/hw/bsp/ra/boards/ra6m5_ek/fsp_cfg/bsp/bsp_cfg.h b/hw/bsp/ra/boards/ra6m5_ek/fsp_cfg/bsp/bsp_cfg.h
index a41536eda..33d381850 100644
--- a/hw/bsp/ra/boards/ra6m5_ek/fsp_cfg/bsp/bsp_cfg.h
+++ b/hw/bsp/ra/boards/ra6m5_ek/fsp_cfg/bsp/bsp_cfg.h
@@ -27,7 +27,7 @@ extern "C" {
   #define BSP_CFG_BOOT_IMAGE (1)
 #endif
 #define BSP_CFG_MCU_VCC_MV (3300)
-#define BSP_CFG_STACK_MAIN_BYTES (0x400)
+#define BSP_CFG_STACK_MAIN_BYTES (0x1000)
 #define BSP_CFG_HEAP_BYTES (0x1000)
 #define BSP_CFG_PARAM_CHECKING_ENABLE (1)
 #define BSP_CFG_ASSERT (0)