diff --git a/third_party/pigweed b/third_party/pigweed
index a9d7847..c39935d 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit a9d7847a6fa2b7745c39c6b4f26c8acc16f87b06
+Subproject commit c39935d7885b2c52bc46ea521459e533aa41465c