diff --git a/tf/environments/prod/main.tf b/tf/environments/prod/main.tf
index 70e0ae5d..3c90337e 100644
--- a/tf/environments/prod/main.tf
+++ b/tf/environments/prod/main.tf
@@ -314,9 +314,9 @@ module "ooniapi_cluster" {
   subnet_ids = module.network.vpc_subnet_public[*].id
 
   # You need be careful how these are tweaked.
-  asg_min     = 3
+  asg_min     = 4
   asg_max     = 8
-  asg_desired = 3
+  asg_desired = 4
 
   instance_type = "t3.micro"