diff --git a/examples/stm32/nucleo-f746zg-keil-freertos-lwip/RTE/RTOS/FreeRTOSConfig.h b/examples/stm32/nucleo-f746zg-keil-freertos-lwip/RTE/RTOS/FreeRTOSConfig.h
index ab4b0b1c..7bb5e8f6 100644
--- a/examples/stm32/nucleo-f746zg-keil-freertos-lwip/RTE/RTOS/FreeRTOSConfig.h
+++ b/examples/stm32/nucleo-f746zg-keil-freertos-lwip/RTE/RTOS/FreeRTOSConfig.h
@@ -51,7 +51,7 @@ extern uint32_t SystemCoreClock;
 #define configCPU_CLOCK_HZ                    (SystemCoreClock)
 #define configTICK_RATE_HZ                    ((TickType_t)1000)
 #define configTOTAL_HEAP_SIZE                 ((size_t)1024 * 128)
-#define configMINIMAL_STACK_SIZE              ((uint16_t)128)
+#define configMINIMAL_STACK_SIZE              ((uint16_t)256)
 #define configSUPPORT_DYNAMIC_ALLOCATION      1
 #define configSUPPORT_STATIC_ALLOCATION       0
 
diff --git a/examples/stm32/nucleo-f746zg-keil-freertos_cmsis2-lwip/RTE/RTOS/FreeRTOSConfig.h b/examples/stm32/nucleo-f746zg-keil-freertos_cmsis2-lwip/RTE/RTOS/FreeRTOSConfig.h
index fc4eb09e..777438e7 100644
--- a/examples/stm32/nucleo-f746zg-keil-freertos_cmsis2-lwip/RTE/RTOS/FreeRTOSConfig.h
+++ b/examples/stm32/nucleo-f746zg-keil-freertos_cmsis2-lwip/RTE/RTOS/FreeRTOSConfig.h
@@ -51,7 +51,7 @@
 //  <o>Minimal stack size [words] <0-65535>
 //  <i> Stack for idle task and default task stack in words.
 //  <i> Default: 128
-#define configMINIMAL_STACK_SIZE                ((uint16_t)(128))
+#define configMINIMAL_STACK_SIZE                ((uint16_t)(256))
 
 //  <o>Total heap size [bytes] <0-0xFFFFFFFF>
 //  <i> Heap memory size in bytes.