diff --git a/package.json b/package.json
index f91b6dbb0..1fdffebbd 100644
--- a/package.json
+++ b/package.json
@@ -67,7 +67,7 @@
     "karma-sinon": "1.0.5",
     "karma-spec-reporter": "0.0.26",
     "lint-staged": "^8.1.0",
-    "mocha": "3.2.0",
+    "mocha": "4.0.0",
     "prettier": "^1.15.3",
     "rimraf": "2.5.4",
     "rollup": "^2.34.1",