diff --git a/os/net/security/tinydtls b/os/net/security/tinydtls
index 5da931eeb..53a0d97da 160000
--- a/os/net/security/tinydtls
+++ b/os/net/security/tinydtls
@@ -1 +1 @@
-Subproject commit 5da931eeb78d1cd4a1e0068a91de9b78bd3f66de
+Subproject commit 53a0d97da748a67093c49cb38744650c71d58c4d