diff --git a/.eslintrc.js b/.eslintrc.js
index 3a11915c..14967891 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -21,6 +21,7 @@ module.exports = {
     es6: true,
     browser: true,
     jest: true,
+    es2020: true,
   },
   extends: [
     // The airbnb config includes configuraton for import, react, and jsx-a11y.
diff --git a/test.jsx b/test.jsx
index 44d48fa3..46b7836b 100644
--- a/test.jsx
+++ b/test.jsx
@@ -24,3 +24,6 @@ class MethodDoesNotUseThis {
 // disable no-plusplus
 let i = 0;
 i++;
+
+// globalThis is allowed
+const value = globalThis.localStorage.getItem('foo');