diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..28cd7e5
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "braze-specification"]
+	path = braze-specification
+	url = https://github.com/braze-community/braze-specification.git
diff --git a/.jane-openapi b/.jane-openapi
index 19c8dca..c547c7d 100644
--- a/.jane-openapi
+++ b/.jane-openapi
@@ -5,6 +5,6 @@ declare(strict_types=1);
 return [
     'directory' => __DIR__ . '/lib',
     'namespace' => 'Braze',
-    'openapi-file' => 'https://raw.githubusercontent.com/braze-community/braze-specification/master/openapi/spec.json',
+    'openapi-file' => __DIR__ . '/braze-specification/openapi/spec.json',
     'use-fixer' => true,
 ];
diff --git a/braze-specification b/braze-specification
new file mode 160000
index 0000000..104542a
--- /dev/null
+++ b/braze-specification
@@ -0,0 +1 @@
+Subproject commit 104542ae7238ff9bbc4e0b501358d4cf1b567e06