diff --git a/package.json b/package.json
index 667c761..65317e7 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "rollup-plugin-commonjs": "^9.1.4",
     "rollup-plugin-json": "^3.0.0",
     "rollup-plugin-node-resolve": "^3.3.0",
-    "rollup-plugin-uglify": "^4.0.0",
+    "rollup-plugin-uglify": "^5.0.1",
     "rollup-watch": "^4.3.1"
   },
   "jest": {