diff --git a/third_party/pigweed b/third_party/pigweed
index 40ced78..3178503 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 40ced78e4ae4490c6c429257717f08da30700a25
+Subproject commit 3178503b13226d74c74c3902ea68e5df2147c825