diff --git a/openthread b/openthread
index 91b7c3f..4a9fb06 160000
--- a/openthread
+++ b/openthread
@@ -1 +1 @@
-Subproject commit 91b7c3ff3f178a212c94f18662a3b4e3f400d721
+Subproject commit 4a9fb0609e5e2423243d4a533fd76fafafd550ff