diff --git a/tools/sdk/lib/liblwip2.a b/tools/sdk/lib/liblwip2.a
index b7ae173fa1..ac55498a11 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 d86ae97d2b..1458c584aa 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 11d2224d20..afc929779c 160000
--- a/tools/sdk/lwip2/builder
+++ b/tools/sdk/lwip2/builder
@@ -1 +1 @@
-Subproject commit 11d2224d2072192a668ea6f9f99f43fdf78b3c90
+Subproject commit afc929779c7fcf23c6253f0cc71b1cf0bc83183f