diff --git a/stm-firmware/shellmatta b/stm-firmware/shellmatta
index 6c76dfc..ebf65d7 160000
--- a/stm-firmware/shellmatta
+++ b/stm-firmware/shellmatta
@@ -1 +1 @@
-Subproject commit 6c76dfc7aed2594579f09d0b797d6a51cffff343
+Subproject commit ebf65d744838a5c7bbf6ddfff6cb4428f012fd97