diff --git a/package.json b/package.json
index 8845052..bd4aa02 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "rollup-plugin-commonjs": "^9.1.0",
     "rollup-plugin-node-resolve": "^3.0.0",
     "rollup-plugin-svelte": "^4.0.0",
-    "rollup-plugin-uglify": "^3.0.0",
+    "rollup-plugin-uglify": "^4.0.0",
     "serve": "^6.4.3",
     "svelte": "^1.50.0"
   },