diff --git a/src/grbl b/src/grbl
index efe4245..234c560 160000
--- a/src/grbl
+++ b/src/grbl
@@ -1 +1 @@
-Subproject commit efe4245a06b8244d801b8f54acda017456bbb680
+Subproject commit 234c5609b911fb12f5f497a120440a0d4d6576cf