diff --git a/package.json b/package.json
index dea5e74..3fd7e9a 100644
--- a/package.json
+++ b/package.json
@@ -55,6 +55,7 @@
   "devDependencies": {
     "@babel/core": "^7.2.0",
     "@babel/node": "^7.2.0",
+    "@babel/polyfill": "^7.0.0",
     "@babel/preset-env": "^7.2.0",
     "@svgr/webpack": "^4.1.0",
     "ava": "^1.0.1",
diff --git a/scripts/lighthouse.test.js b/scripts/lighthouse.test.js
index 7be262a..ceca638 100644
--- a/scripts/lighthouse.test.js
+++ b/scripts/lighthouse.test.js
@@ -1,5 +1,6 @@
+import '@babel/polyfill'
 import * as chromeLauncher from 'chrome-launcher'
-import { test } from 'ava'
+import test from 'ava'
 import lighthouse from 'lighthouse'
 import { siteMetadata } from '../gatsby-config'