diff --git a/examples/bluetooth/bluedroid/classic_bt/bt_hid_mouse_device/main/main.c b/examples/bluetooth/bluedroid/classic_bt/bt_hid_mouse_device/main/main.c
index 643279bc2b..e1a49205d4 100644
--- a/examples/bluetooth/bluedroid/classic_bt/bt_hid_mouse_device/main/main.c
+++ b/examples/bluetooth/bluedroid/classic_bt/bt_hid_mouse_device/main/main.c
@@ -229,7 +229,7 @@ void bt_app_task_start_up(void)
 {
     s_local_param.mouse_mutex = xSemaphoreCreateMutex();
     memset(s_local_param.buffer, 0, REPORT_BUFFER_SIZE);
-    xTaskCreate(mouse_move_task, "mouse_move_task", 2 * 1024, NULL, configMAX_PRIORITIES - 3, &s_local_param.mouse_task_hdl);
+    xTaskCreate(mouse_move_task, "mouse_move_task", 4 * 1024, NULL, configMAX_PRIORITIES - 3, &s_local_param.mouse_task_hdl);
     return;
 }
 
diff --git a/examples/bluetooth/bluedroid/classic_bt/bt_spp_vfs_initiator/main/spp_task.c b/examples/bluetooth/bluedroid/classic_bt/bt_spp_vfs_initiator/main/spp_task.c
index 275df04fda..4bb4f23478 100644
--- a/examples/bluetooth/bluedroid/classic_bt/bt_spp_vfs_initiator/main/spp_task.c
+++ b/examples/bluetooth/bluedroid/classic_bt/bt_spp_vfs_initiator/main/spp_task.c
@@ -93,7 +93,7 @@ static void spp_task_task_handler(void *arg)
 void spp_task_task_start_up(void)
 {
     spp_task_task_queue = xQueueCreate(10, sizeof(spp_task_msg_t));
-    xTaskCreate(spp_task_task_handler, "SPPAppT", 2048, NULL, 10, &spp_task_task_handle);
+    xTaskCreate(spp_task_task_handler, "SPPAppT", 4 * 1024, NULL, 10, &spp_task_task_handle);
     return;
 }