diff --git a/tools/sdk/lib/liblwip2.a b/tools/sdk/lib/liblwip2.a
index 451dd36c62..223ee7cb77 100644
Binary files a/tools/sdk/lib/liblwip2.a and b/tools/sdk/lib/liblwip2.a differ
diff --git a/tools/sdk/lib/liblwip2_1460.a b/tools/sdk/lib/liblwip2_1460.a
index 62bb4c02c7..f0307b1826 100644
Binary files a/tools/sdk/lib/liblwip2_1460.a and b/tools/sdk/lib/liblwip2_1460.a differ
diff --git a/tools/sdk/lwip2/builder b/tools/sdk/lwip2/builder
index 1b8826735c..bdd68addcf 160000
--- a/tools/sdk/lwip2/builder
+++ b/tools/sdk/lwip2/builder
@@ -1 +1 @@
-Subproject commit 1b8826735cffa57d71ff6ce1fd79ec9d44a5215f
+Subproject commit bdd68addcfed8f2e3b484b465369dac0407d3f5e