diff --git a/third_party/pigweed/repo b/third_party/pigweed/repo
index 9e4bfb92eb5ad7..666f31b024a52c 160000
--- a/third_party/pigweed/repo
+++ b/third_party/pigweed/repo
@@ -1 +1 @@
-Subproject commit 9e4bfb92eb5ad7458d7d4fd3543fb6f115cc744a
+Subproject commit 666f31b024a52c83b516f7ed8b719ead1c7e8fb0