diff --git a/third_party/pigweed b/third_party/pigweed
index ab255ad..4cf921e 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit ab255ad1ab2b3442c70e8677c9572deaceb8ae13
+Subproject commit 4cf921eb635b9b23600d962de4b933cb80bf1635