diff --git a/lwip/lwip b/lwip/lwip
index 9f70dbe..d74e9ad 160000
--- a/lwip/lwip
+++ b/lwip/lwip
@@ -1 +1 @@
-Subproject commit 9f70dbe91a68df81c6bbcb48306a590359a41d3f
+Subproject commit d74e9ad2f7c9db996fb398cd41bf59ef463ae6fe