diff --git a/package.json b/package.json
index 085cca3..9519abe 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "coveralls": "^3.0.0",
     "eslint": "^4.4.1",
     "js-promisify": "^1.1.0",
-    "mocha": "^4.0.0",
+    "mocha": "^6.0.2",
     "nyc": "^11.1.0",
     "rimraf": "^2.6.1",
     "webpack": "^3.5.4",