diff --git a/package.json b/package.json
index ac58843..a79d2c3 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "npm": ">=1.1.x"
   },
   "dependencies": {
-    "underscore": "1.8.3"
+    "underscore": "1.9.0"
   },
   "devDependencies": {
     "should": "13.1.0",