diff --git a/core/.eslintrc.json b/core/.eslintrc.json
index a2faf64523..d3ae965289 100644
--- a/core/.eslintrc.json
+++ b/core/.eslintrc.json
@@ -10,6 +10,9 @@
     "es6": true,
     "node": true
   },
+  "parserOptions": {
+    "ecmaVersion": 2020
+  },
   "globals": {
     "Drupal": true,
     "drupalSettings": true,