diff --git a/webapp/package.json b/webapp/package.json
index 729ccd7..e05fc83 100644
--- a/webapp/package.json
+++ b/webapp/package.json
@@ -43,7 +43,7 @@
       "@vue/typescript/recommended"
     ],
     "parserOptions": {
-      "ecmaVersion": 2020
+      "ecmaVersion": 2021
     },
     "rules": {}
   },