diff --git a/.gitmodules b/.gitmodules
index e69de29..7093cce 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "spec/JSON-Schema-Test-Suite"]
+	path = spec/JSON-Schema-Test-Suite
+	url = https://github.com/json-schema/JSON-Schema-Test-Suite.git
diff --git a/package.json b/package.json
index 9f0bde8..4068d09 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,6 @@
     "json-stable-stringify": "^1.0.0"
   },
   "devDependencies": {
-    "JSON-Schema-Test-Suite": "git+ssh://git@github.com/json-schema/JSON-Schema-Test-Suite.git",
     "glob": "^5.0.10",
     "mocha": "^2.2.5"
   }
diff --git a/spec/JSON-Schema-Test-Suite b/spec/JSON-Schema-Test-Suite
new file mode 160000
index 0000000..504f776
--- /dev/null
+++ b/spec/JSON-Schema-Test-Suite
@@ -0,0 +1 @@
+Subproject commit 504f7768e30d805067385ac9d6aa8186fba2952b