diff --git a/third_party/pigweed b/third_party/pigweed
index 8160a4d..64c4834 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 8160a4da123eb03d4faac383407adeaae7904da7
+Subproject commit 64c48347cf7ccbdc6fbdfbc044b2a689911a7d13