diff --git a/package.json b/package.json
index 4f045c2..02f4d8d 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "in-publish": "^2.0.0",
     "rollup": "^0.41.1",
     "rollup-plugin-babel": "^2.6.1",
-    "rollup-plugin-uglify": "^1.0.1",
+    "rollup-plugin-uglify": "^2.0.0",
     "watch": "^1.0.1"
   }
 }