diff --git a/third_party/pigweed b/third_party/pigweed
index b901805..661bf47 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit b90180561658453318c36b125fd8af37de713a3f
+Subproject commit 661bf47f06e604384a4c7eb7bf79d2f3da71ee74