diff --git a/third_party/pigweed b/third_party/pigweed
index ddbc9fc..3964e53 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit ddbc9fc7f5c601ab417db37e02cbe5294f21ad6d
+Subproject commit 3964e532b2a7a11667e8f90ca8e841fb56f3036c