diff --git a/functions/package.json b/functions/package.json
index ef25854a..49b864ad 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -16,7 +16,7 @@
     "playground": "node lib/playground.js"
   },
   "engines": {
-    "node": "18"
+    "node": "20"
   },
   "main": "lib/index.js",
   "dependencies": {
diff --git a/functions/src/prerender/controller.ts b/functions/src/prerender/controller.ts
index b294c463..126d4dcb 100644
--- a/functions/src/prerender/controller.ts
+++ b/functions/src/prerender/controller.ts
@@ -1,6 +1,6 @@
 import * as express from 'express';
-import * as functions from 'firebase-functions';
 import {errorMiddleware} from '../middlewares/error.middleware';
+import {onRequest} from 'firebase-functions/v2/https';
 
 export function prerenderOpenSearch(req: express.Request, res: express.Response) {
   // TODO support language selection - opensearch.xml?lang=he
@@ -23,5 +23,5 @@ export const prerenderFunctions = () => {
   const app = express();
   app.get('/opensearch.xml', prerenderOpenSearch);
   app.use(errorMiddleware);
-  return functions.https.onRequest(app);
+  return onRequest({cors: true, invoker: 'public'}, app);
 };