diff --git a/tools/ota-dfu b/tools/ota-dfu
index 9cc61db..3d6fd30 160000
--- a/tools/ota-dfu
+++ b/tools/ota-dfu
@@ -1 +1 @@
-Subproject commit 9cc61db89ec80ddbdc7a1ecee605cb5d4c391e19
+Subproject commit 3d6fd30d33c2b20bc86ff6b9269fddf4a1d4c7c6