diff --git a/package.json b/package.json
index 1ef0ea5..9c913cd 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "rollup-plugin-livereload": "^1.0.0",
     "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-svelte": "^5.0.3",
-    "rollup-plugin-terser": "^4.0.4",
+    "rollup-plugin-terser": "^5.1.2",
     "svelte": "^3.0.0"
   },
   "dependencies": {