diff --git a/services/terraform/self-host/keyserver_primary.tf b/services/terraform/self-host/keyserver_primary.tf
--- a/services/terraform/self-host/keyserver_primary.tf
+++ b/services/terraform/self-host/keyserver_primary.tf
@@ -122,14 +122,17 @@
 resource "aws_ecs_service" "keyserver_primary_service" {
   depends_on = [null_resource.create_comm_database]
 
-  name                    = "keyserver-primary-service"
-  cluster                 = aws_ecs_cluster.keyserver_cluster.id
-  task_definition         = aws_ecs_task_definition.keyserver_service.arn
-  launch_type             = "FARGATE"
-  enable_execute_command  = true
-  enable_ecs_managed_tags = true
-  force_new_deployment    = true
-  desired_count           = 1
+  name                               = "keyserver-primary-service"
+  cluster                            = aws_ecs_cluster.keyserver_cluster.id
+  task_definition                    = aws_ecs_task_definition.keyserver_service.arn
+  launch_type                        = "FARGATE"
+  enable_execute_command             = true
+  enable_ecs_managed_tags            = true
+  force_new_deployment               = true
+  desired_count                      = 1
+  deployment_maximum_percent         = 100
+  deployment_minimum_healthy_percent = 0
+
 
   network_configuration {
     subnets          = local.vpc_subnets