diff --git a/lib/lwip b/lib/lwip
index 92f23d6ca0..159e31b689 160000
--- a/lib/lwip
+++ b/lib/lwip
@@ -1 +1 @@
-Subproject commit 92f23d6ca0971a32f2085b9480e738d34174417b
+Subproject commit 159e31b689577dbf69cf0683bbaffbd71fa5ee10