diff --git a/package.json b/package.json
index d02d726..62b9a63 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "espower-loader": "^1.0.0",
     "intelli-espower-loader": "^1.0.0",
     "minecraft-wrap": "^1.0.0",
-    "mocha": "^4.0.0",
+    "mocha": "^5.0.5",
     "power-assert": "^1.0.0",
     "require-self": "^0.2.1"
   },