diff --git a/third_party/pigweed b/third_party/pigweed
index 05b1466..ef86a47 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 05b1466ec3a0026dceb49a10e4e6052c94f999ac
+Subproject commit ef86a47f69065196b3c5ee0a6b2616e4e3bd553a