diff --git a/runtime/jacdac-c b/runtime/jacdac-c
index 36e87d701a..4999428230 160000
--- a/runtime/jacdac-c
+++ b/runtime/jacdac-c
@@ -1 +1 @@
-Subproject commit 36e87d701ac15addccd6b134993f5a5be5bed410
+Subproject commit 499942823027445855e50c772b4eef4646ad5eb6