diff --git a/third_party/pigweed b/third_party/pigweed
index 81797a4..5b4b97c 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 81797a4675c000d374700d0a37288b2d8945dac2
+Subproject commit 5b4b97ce8950a9210e0428cafd49f49e8c68a76f