diff --git a/package.json b/package.json
index 55b28c1..a90f97d 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
   "license": "GPL-3.0",
   "dependencies": {
     "babel-runtime": "^6.26.0",
+    "js-yaml": "^3.10.0",
     "matrix-js-sdk": "^0.8.4"
   }
 }