diff --git a/.gitmodules b/.gitmodules
index 0c300cd..47bd5c5 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,10 @@
 [submodule "pico-ice/pico-sdk"]
 	path = pico-ice/pico-sdk
 	url = https://github.com/raspberrypi/pico-sdk
+	shallow = true
+	ignore = dirty
 [submodule "pico-ice/pico-ice-sdk"]
 	path = pico-ice/pico-ice-sdk
 	url = https://github.com/tinyvision-ai-inc/pico-ice-sdk
+	shallow = true
+	ignore = dirty