diff --git a/third_party/pigweed b/third_party/pigweed
index ddfd6e9..2a97789 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit ddfd6e92fdd02c58d78411ace55cfae07a4f8586
+Subproject commit 2a9778914884c9dfe3528f9f506d8f024fdf94ad