diff --git a/package.json b/package.json
index fc7527ae02..26def8a431 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,7 @@
   "dependencies": {
     "ast-types": "~0.7.0",
     "chalk": "^1.0.0",
+    "chokidar": "^1.0.0",
     "convert-source-map": "^0.5.0",
     "core-js": "^0.8.1",
     "debug": "^2.1.1",