diff --git a/libs/azure-iot-middleware-freertos b/libs/azure-iot-middleware-freertos
index 8b0db153..4b970aee 160000
--- a/libs/azure-iot-middleware-freertos
+++ b/libs/azure-iot-middleware-freertos
@@ -1 +1 @@
-Subproject commit 8b0db15339e3c63234f3ed34c21511342b4dfe86
+Subproject commit 4b970aee74cf8cc674c1a26d1dcfae644342a400