diff --git a/package.json b/package.json
index 6065d7a..9ee0eeb 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "vimeo": "^1.2.0"
   },
   "devDependencies": {
-    "chai": "^4.0.0",
+    "chai": "^4.1.1",
     "codeclimate-test-reporter": "^0.4.0",
     "coffee-coverage": "^2.0.0",
     "coffee-script": "^1.12.0",