diff --git a/third_party/pigweed b/third_party/pigweed
index 2de4acb..4ab4b22 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 2de4acb67e7e38d68089831c28f8224040736b22
+Subproject commit 4ab4b220f23f96879a9c83b55f5570ab3af9a3af