diff --git a/package.json b/package.json
index 44346a13..a00d17b6 100644
--- a/package.json
+++ b/package.json
@@ -1,9 +1,10 @@
 {
   "name": "heroku-cra-node",
   "version": "3.0.0",
+  "type": "module",
   "description": "How to use create-react-app with a custom Node API on Heroku",
   "engines": {
-    "node": "10.x"
+    "node": "14.x"
   },
   "scripts": {
     "start": "node server",
diff --git a/server/index.js b/server/index.js
index 9b5c7d6e..97dc51ed 100644
--- a/server/index.js
+++ b/server/index.js
@@ -3,6 +3,9 @@ const path = require('path');
 const cluster = require('cluster');
 const numCPUs = require('os').cpus().length;
 
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+
 const isDev = process.env.NODE_ENV !== 'production';
 const PORT = process.env.PORT || 5000;