diff --git a/third_party/pigweed b/third_party/pigweed
index 6d73172..cd66a74 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 6d7317260b3bc088860290d5611558d1e74d7af6
+Subproject commit cd66a7460905b2905769acc3c80a0dd3d7b4a856