diff --git a/openthread b/openthread
index 07c56c2..21ac9f5 160000
--- a/openthread
+++ b/openthread
@@ -1 +1 @@
-Subproject commit 07c56c28e03c298032e446befab0819d5b4121b5
+Subproject commit 21ac9f54cf163f913bf8e7cc8ebbe635c9449eff