diff --git a/lwip b/lwip
index 51d48fe0c..3b7c88f0c 160000
--- a/lwip
+++ b/lwip
@@ -1 +1 @@
-Subproject commit 51d48fe0c67131da346c9ef280b2019c77f6e607
+Subproject commit 3b7c88f0cb248a647b8edff99793524162ec9083