diff --git a/.gitmodules b/.gitmodules
index d18bef0..e69de29 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,8 +0,0 @@
-[submodule "pigweed"]
-	path = pigweed
-	url = ../pigweed
-	branch = main
-[submodule "zephyr"]
-	path = zephyr
-	url = ../../third_party/github/zephyrproject-rtos/zephyr
-	branch = main
diff --git a/pigweed b/pigweed
deleted file mode 160000
index 78ad640..0000000
--- a/pigweed
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 78ad6403cc6760021e89e8bb9b6c27c54af29f33
diff --git a/zephyr b/zephyr
deleted file mode 160000
index 10130d8..0000000
--- a/zephyr
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 10130d8e6de8c3889f42d498d3de6115db8f2d35