diff --git a/third_party/pigweed b/third_party/pigweed
index f85d4f6..f438978 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit f85d4f62a404caa144d337851815ca21e4dadf54
+Subproject commit f438978ee6805ca50835377581c78b8fe7a8c96e