diff --git a/.gitmodules b/.gitmodules
index 0feddbd..50b9464 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "gdb"]
 	path = gdb
 	url = https://github.com/zephyrproject-rtos/binutils-gdb.git
+[submodule "picolibc"]
+	path = picolibc
+	url = https://github.com/zephyrproject-rtos/picolibc.git
diff --git a/picolibc b/picolibc
new file mode 160000
index 0000000..9e699e3
--- /dev/null
+++ b/picolibc
@@ -0,0 +1 @@
+Subproject commit 9e699e3ebc1c1839c98275e160eda4a77f23eb3c