diff --git a/package.json b/package.json
index 1c00f48e1..610ae4050 100644
--- a/package.json
+++ b/package.json
@@ -61,6 +61,9 @@
     "request": "^2.61.0",
     "sass-graph": "^2.0.1"
   },
+  "optionalDependencies": {
+    "fsevents": "0.3.7"
+  },
   "devDependencies": {
     "coveralls": "^2.11.4",
     "cross-spawn": "^2.0.0",