diff --git a/ports/raspberrypi/lib/Pico-PIO-USB b/ports/raspberrypi/lib/Pico-PIO-USB
index b559b3e1637ea..b004a765a122e 160000
--- a/ports/raspberrypi/lib/Pico-PIO-USB
+++ b/ports/raspberrypi/lib/Pico-PIO-USB
@@ -1 +1 @@
-Subproject commit b559b3e1637ead1768514b0de962e21a99a9adbf
+Subproject commit b004a765a122ef3d5fb81a0004aa8575ce89596a