diff --git a/package.json b/package.json
index d2987894f..44993e991 100644
--- a/package.json
+++ b/package.json
@@ -189,7 +189,7 @@
     "yamljs": "^0.3.0"
   },
   "devDependencies": {
-    "mocha": "^4",
+    "mocha": "^3.5",
     "should": "^11"
   },
   "optionalDependencies": {