diff --git a/package.json b/package.json
index 5c3dd21..8bf745f 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "coveralls": "^3.0.0",
     "intelli-espower-loader": "^1.0.1",
     "istanbul": "^0.4.5",
-    "mocha": "^4.0.0",
+    "mocha": "^5.0.1",
     "power-assert": "^1.4.2",
     "proxyquire": "^1.7.10"
   }