diff --git a/demo/package.json b/demo/package.json
index c7351b5..0140a04 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -34,7 +34,7 @@
   "dependencies": {
     "microdata-template": "^2.2.2",
     "postette": "^0.4.0",
-    "highcharts": "^6.2.0",
+    "highcharts": "^8.2.0",
     "jquery": "^3.4.1"
   }
 }