diff --git a/samples/modules/lvgl/demos/boards/native_sim_native_64.conf b/samples/modules/lvgl/demos/boards/native_sim_native_64.conf
index 36220318e8a8b..e7148a600639b 100644
--- a/samples/modules/lvgl/demos/boards/native_sim_native_64.conf
+++ b/samples/modules/lvgl/demos/boards/native_sim_native_64.conf
@@ -2,4 +2,4 @@
 # SPDX-License-Identifier: Apache-2.0
 
 CONFIG_LV_COLOR_DEPTH_32=y
-CONFIG_LV_Z_MEM_POOL_SIZE=75264
+CONFIG_LV_Z_MEM_POOL_SIZE=81920
diff --git a/samples/modules/lvgl/demos/prj.conf b/samples/modules/lvgl/demos/prj.conf
index 4b7ab1bb7dbb3..572a2a5cdc2f8 100644
--- a/samples/modules/lvgl/demos/prj.conf
+++ b/samples/modules/lvgl/demos/prj.conf
@@ -1,4 +1,4 @@
-CONFIG_MAIN_STACK_SIZE=4096
+CONFIG_MAIN_STACK_SIZE=6144
 CONFIG_LOG=y
 CONFIG_SHELL=y