diff --git a/third_party/pigweed/repo b/third_party/pigweed/repo
index d5fcc90b39ee75..c221c639957646 160000
--- a/third_party/pigweed/repo
+++ b/third_party/pigweed/repo
@@ -1 +1 @@
-Subproject commit d5fcc90b39ee7568855390535fa854cea8f33c95
+Subproject commit c221c639957646393332c6ae52a48331c2b96fad