diff --git a/mbedtls b/mbedtls
index b6860cf..21837fc 160000
--- a/mbedtls
+++ b/mbedtls
@@ -1 +1 @@
-Subproject commit b6860cf7f9f4be0cc60f36909f6a5887008fb408
+Subproject commit 21837fc4767747c74ef90dc9d95432a68f6f62ff