diff --git a/third_party/pigweed b/third_party/pigweed
index d5a4220..4b5ad7d 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit d5a4220ec99138895d2f44e4eed2b5eee5537f42
+Subproject commit 4b5ad7d97e5eefc928081268c3e0a059b4aa369b