diff --git a/package.json b/package.json
index 14d3c01..cac3ef8 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "glob": "^7.0.0",
     "mocha": "^2.4.5",
     "should": "1.2.0",
-    "underscore": "1.4.0"
+    "underscore": "1.12.1"
   },
   "devDependencies": {},
   "scripts": {