diff --git a/third_party/pigweed b/third_party/pigweed
index e51b311..d4b4837 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit e51b311a154e11ca84ff493ba279e0280c8c2df8
+Subproject commit d4b4837220363c4eac5261ea83c97e74678b5759