diff --git a/package.json b/package.json
index a76bd8c2..96df057b 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
     "istanbul-coveralls": "^1.0.3",
     "jsdoc": "3.5.5",
     "jshint": "~2.9.4",
-    "mocha": "^5.2.0",
+    "mocha": "^2.0.1",
     "should": "~4.6.2"
   },
   "optionalDependencies": {