diff --git a/third_party/pigweed b/third_party/pigweed
index 2fd417a..dd64671 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 2fd417afdfe524f7cacbb68e54e8113f32af9165
+Subproject commit dd646718bf1893e13edeffbacb23b665ed45a5e9