diff --git a/lib/lwip b/lib/lwip
index 0192fe773..159e31b68 160000
--- a/lib/lwip
+++ b/lib/lwip
@@ -1 +1 @@
-Subproject commit 0192fe773ec28e11f66ec76f4e827fbb58b7e257
+Subproject commit 159e31b689577dbf69cf0683bbaffbd71fa5ee10