diff --git a/site/.eslintrc.json b/site/.eslintrc.json
index 9c52795518..56f36177e3 100644
--- a/site/.eslintrc.json
+++ b/site/.eslintrc.json
@@ -1,6 +1,7 @@
 {
   "root": true,
   "parserOptions": {
+    "ecmaVersion": 5,
     "sourceType": "script"
   },
   "extends": [