diff --git a/third_party/tock b/third_party/tock
index 7e47e6f1a9b279b6458edeb0fa24af381f5a1572..3139864d391ab654bfb9c27ca8dcd3e4e9a2d58e 160000
--- a/third_party/tock
+++ b/third_party/tock
@@ -1 +1 @@
-Subproject commit 7e47e6f1a9b279b6458edeb0fa24af381f5a1572
+Subproject commit 3139864d391ab654bfb9c27ca8dcd3e4e9a2d58e