diff --git a/components/net/SConscript b/components/net/SConscript
index 1357330270b73bce1875878955818a5012e5f546..c1246a601c66e6b911d6dae9c49d512e3237c349 100644
--- a/components/net/SConscript
+++ b/components/net/SConscript
@@ -6,9 +6,9 @@ from building import *
 objs = []
 list = os.listdir(os.path.join(RTT_ROOT, 'components', 'net'))
 
-# the default version of LWIP is 1.4.0
-if not GetDepend('RT_USING_LWIP132') and not GetDepend('RT_USING_LWIP141'):
-    AddDepend('RT_USING_LWIP140')
+# the default version of LWIP is 1.4.1
+if not GetDepend('RT_USING_LWIP132') and not GetDepend('RT_USING_LWIP140'):
+    AddDepend('RT_USING_LWIP141')
 
 for d in list:
     path = os.path.join(RTT_ROOT, 'components', 'net', d)