diff --git a/third_party/pigweed b/third_party/pigweed
index 8fc6081..5421a43 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 8fc60811d7e2d44a6b08b9af83493cca445cca0e
+Subproject commit 5421a431f4bdd46304aaf461a71c8588592fb569