diff --git a/third_party/pigweed b/third_party/pigweed
index 2713eaa..21831f2 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 2713eaa054af73a22027b136a7bab197de3ba689
+Subproject commit 21831f286998e27f83bcd3dc726a70edfb43b2f1