diff --git a/third_party/pigweed/repo b/third_party/pigweed/repo
index 9235aeb653e684..4390d2a8a2d96f 160000
--- a/third_party/pigweed/repo
+++ b/third_party/pigweed/repo
@@ -1 +1 @@
-Subproject commit 9235aeb653e684a6f0b7b563965d85c747281a0f
+Subproject commit 4390d2a8a2d96fe38a44062699bd4e388fd672e2