diff --git a/sdkconfig.defaults b/sdkconfig.defaults
index f464e00..2452bf4 100644
--- a/sdkconfig.defaults
+++ b/sdkconfig.defaults
@@ -18,7 +18,9 @@ CONFIG_EXAMPLE_LVGL_PORT_AVOID_TEAR_ENABLE=y
 
 # LVGL 9 configuration
 CONFIG_LV_COLOR_DEPTH_16=y
+CONFIG_LV_USE_BUILTIN_MALLOC=n
 CONFIG_LV_USE_CLIB_MALLOC=y
+CONFIG_SPIRAM_MALLOC_ALWAYSINTERNAL=128
 CONFIG_LV_USE_LOG=y
 CONFIG_LV_LOG_PRINTF=y
 CONFIG_LV_USE_PERF_MONITOR=y