diff --git a/package.json b/package.json
index 3fe82423d..7075a56c0 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "eslint": "~4.1.0",
     "glob": "~7.1.0",
     "happen": "~0.3.1",
-    "js-yaml": "~3.8.1",
+    "js-yaml": "~3.9.0",
     "jsonschema": "~1.1.0",
     "json-stable-stringify": "~1.0.1",
     "@mapbox/maki": "^4.0.0",