diff --git a/third_party/pigweed b/third_party/pigweed
index 5a33668..c221c63 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 5a33668785148cc5779381186087487fc5642f51
+Subproject commit c221c639957646393332c6ae52a48331c2b96fad