diff --git a/third_party/pigweed b/third_party/pigweed
index 4ab4b22..678e858 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4ab4b220f23f96879a9c83b55f5570ab3af9a3af
+Subproject commit 678e85847484879c1844641e9be89473ff66367e