diff --git a/package.json b/package.json
index 8444bc1..05d0f52 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
         "gulp-util": "^3.0.7",
         "pump": "^1.0.1",
         "run-sequence": "^1.2.2",
-        "uglify-js": "^1.3.5"
+        "uglify-js": "^3.10.2"
     },
     "scripts": {
         "test": "echo \"Error: no test specified\" && exit 1"