diff --git a/.gitmodules b/.gitmodules
index 2dcff02e..98e1f7f6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -37,3 +37,6 @@
 	path = third_party/json/json
 	url = https://github.com/nlohmann/json
 	branch = master
+[submodule "third_party/micro-ecc"]
+	path = third_party/micro-ecc
+	url = https://github.com/kmackay/micro-ecc
diff --git a/third_party/micro-ecc b/third_party/micro-ecc
new file mode 160000
index 00000000..fe8ed90a
--- /dev/null
+++ b/third_party/micro-ecc
@@ -0,0 +1 @@
+Subproject commit fe8ed90abc356347378eb25e2586e90df7be015a