diff --git a/package.json b/package.json
index 108f7ff..1d3afa4 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "rollup-plugin-commonjs": "8.2.6",
     "rollup-plugin-node-resolve": "3.0.0",
     "rollup-plugin-sourcemaps": "^0.4.1",
-    "rollup-plugin-uglify": "^2.0.1",
+    "rollup-plugin-uglify": "^3.0.0",
     "sinon": "4.1.3"
   },
   "keywords": [