diff --git a/package.json b/package.json
index bc235c5..9029fa0 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "hubot-scripts": ">= 2.5.0 < 3.0.0",
     "jsdom": "",
     "querystring": "",
-    "underscore": "1.3.3",
+    "underscore": "1.13.8",
     "underscore.string": ">=3.3.5",
     "url": "",
     "xml2js": "0.1.14"