diff --git a/third_party/pigweed b/third_party/pigweed
index 64ac90b..a3591c5 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 64ac90b74d9e8c702a878392f01b77dd0554ad0c
+Subproject commit a3591c5b35b18cd8aab441d0079d35c0e3316da6