diff --git a/third_party/pigweed b/third_party/pigweed
index 85b5cd9..acaac68 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 85b5cd9d9b3375c41eb52c027b80d764472173e9
+Subproject commit acaac6813c467fb62f36181ef6d7382a43fd9401