diff --git a/third_party/pigweed b/third_party/pigweed
index 8015cec..df9a0c1 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 8015cecd2287eeb9348d210bf46da567935054af
+Subproject commit df9a0c1acc6de49e0d272a8700a3b247c84e3f84