diff --git a/.gitmodules b/.gitmodules
index e1489d30..21bbf08c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -146,6 +146,3 @@
 [submodule "hw/mcu/allwinner"]
 	path = hw/mcu/allwinner
 	url = https://github.com/hathach/allwinner_driver.git
-[submodule "lib/Pico-PIO-USB"]
-	path = lib/Pico-PIO-USB
-	url = https://github.com/hathach/Pico-PIO-USB.git