diff --git a/stack.yml b/stack.yml
index 5c2577e..f35038b 100644
--- a/stack.yml
+++ b/stack.yml
@@ -37,7 +37,7 @@ services:
       replicas: 1
       update_config:
         parallelism: 1
-        order: start-first
+        order: stop-first
         failure_action: rollback
       resources:
         limits:
@@ -93,7 +93,7 @@ services:
           # Limite conservador para evitar que o backend afete o host inteiro.
           memory: "12G"
         reservations:
-          memory: "6G"
+          memory: "3G"
       restart_policy:
         condition: any
       placement: