diff --git a/functions/index.js b/functions/index.js
index dc7d701..c4b9d37 100644
--- a/functions/index.js
+++ b/functions/index.js
@@ -3,4 +3,13 @@
 const mirror = require('./mirror'),
     functions = require('firebase-functions');
 
-module.exports = { mirror: functions.https.onRequest(mirror.app) };
+module.exports = {
+    mirror: functions
+        .runWith({
+            maxInstances: 10,
+            timeoutSeconds: 540, // 9 min, max
+            memory: "128MB", // min
+        })
+        .https
+        .onRequest(mirror.app)
+};