diff --git a/components/newlib/Kconfig b/components/newlib/Kconfig
index 527130f4..565d1947 100644
--- a/components/newlib/Kconfig
+++ b/components/newlib/Kconfig
@@ -11,7 +11,7 @@ config NEWLIB_ENABLE
 
 choice NEWLIB_LIBRARY_LEVEL
     prompt "newlib level"
-    default NEWLIB_LIBRARY_LEVEL_NANO
+    default NEWLIB_LIBRARY_LEVEL_NORMAL
     depends on NEWLIB_ENABLE
     help
         Choose newlib library level.