diff --git a/third_party/pigweed b/third_party/pigweed
index 0380161..acad217 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 0380161bd68c216a590230f0cc49d26add7eef8a
+Subproject commit acad2170df4937c509fe2cd7337a47627a783596