diff --git a/grblHAL_Teensy4/src/openpnp b/grblHAL_Teensy4/src/openpnp
index c4b4241..6989a15 160000
--- a/grblHAL_Teensy4/src/openpnp
+++ b/grblHAL_Teensy4/src/openpnp
@@ -1 +1 @@
-Subproject commit c4b42410e56ac5529b4ba2254c4b28c05d3e49c6
+Subproject commit 6989a15ca86a45e2e90e62e99501fb480697332d