diff --git a/third_party/pigweed b/third_party/pigweed
index 7bd9f5f..b9bc4e2 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 7bd9f5f44803b7ef4519c9efd52e6220da401926
+Subproject commit b9bc4e28917ea9fdcf1fe5acb81dfb1113480bb2