diff --git a/third_party/pigweed b/third_party/pigweed
index 54ca0db..4fbb15f 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 54ca0db892863f6d278dc9ca5be92591d1b9f98b
+Subproject commit 4fbb15f2d0bba6c880bc3805d99cbe01a0916772