diff --git a/third_party/pigweed b/third_party/pigweed
index 7ef9f70..84853af 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 7ef9f7009731d11bc51a28b350efb746afe5be0b
+Subproject commit 84853afa7c9be8ee981c247fbad161e86a7afbd3