diff --git a/blocky/blocky.nomad b/blocky/blocky.nomad
index a5585fb..b50efee 100644
--- a/blocky/blocky.nomad
+++ b/blocky/blocky.nomad
@@ -6,6 +6,11 @@ variable "config_data" {
 job "blocky" {
   datacenters = ["dc1"]
   type = "system"
+  priority = 100
+
+  update {
+    max_parallel = 1
+  }
 
   group "blocky" {