diff --git a/package.json b/package.json
index 02318fd2..69ff95c5 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "espree": "^3.4.0",
     "husky": "^0.14.0",
     "lint-staged": "^4.0.0",
-    "mocha": "^3.0.0",
+    "mocha": "^4.0.1",
     "prettier": "^1.4.4"
   },
   "lint-staged": {