diff --git a/packages/eslint-plugin/CHANGELOG.md b/packages/eslint-plugin/CHANGELOG.md
index 6a7fd8ca..f391dfd4 100644
--- a/packages/eslint-plugin/CHANGELOG.md
+++ b/packages/eslint-plugin/CHANGELOG.md
@@ -11,6 +11,8 @@ and adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ### Changed
 
+- Update ecmaVersion to 'latest' in `esnext.js` in eslint-plugin to ensure it's esnext. ([296](https://github.com/Shopify/web-configs/pull/296))
+
 - Loosen semver restrictions on `eslint` plugins ([297](https://github.com/Shopify/web-configs/pull/297))
 
 ## 40.4.0 - 2021-07-12
diff --git a/packages/eslint-plugin/lib/config/esnext.js b/packages/eslint-plugin/lib/config/esnext.js
index 342525be..615d7e4f 100644
--- a/packages/eslint-plugin/lib/config/esnext.js
+++ b/packages/eslint-plugin/lib/config/esnext.js
@@ -5,11 +5,11 @@ module.exports = {
   parser: 'babel-eslint',
 
   env: {
-    es6: true,
+    es2021: true,
   },
 
   parserOptions: {
-    ecmaVersion: 2018,
+    ecmaVersion: '2021',
     sourceType: 'module',
   },