diff --git a/package.json b/package.json
index 01f1468..0e61dd2 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "express": "^3.4",
     "jade": "^1.1",
     "winston": "^0.7",
-    "underscore.string": "^2.3",
+    "underscore.string": "^3.3",
     "wantsit": "^1.0",
     "pm2-interface": "^2.0",
     "ws": "^0.4",