diff --git a/package.json b/package.json
index 1b33a8e51..928780bf9 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "fs-access": "^1.0.0",
     "object-assign": "^4.1.0",
     "semver": "^5.1.0",
-    "yargs": "^6.0.0"
+    "yargs": "^6.4.0"
   },
   "devDependencies": {
     "chai": "^3.5.0",