diff --git a/app.yaml b/app.yaml
index 43d79f5..ec55629 100644
--- a/app.yaml
+++ b/app.yaml
@@ -2,7 +2,6 @@ runtime: nodejs10
 env: standard
 instance_class: F4
 automatic_scaling:
-  min_idle_instances: 2
-  max_instances: 12
+  max_concurrent_requests: 20
 env_variables:
   NODE_ENV: 'production'