diff --git a/roles/rabbitmq/tasks/main.yml b/roles/rabbitmq/tasks/main.yml
index 8e51bfe..b650123 100644
--- a/roles/rabbitmq/tasks/main.yml
+++ b/roles/rabbitmq/tasks/main.yml
@@ -31,6 +31,9 @@
                       operator: In
                       values:
                         - enabled
+        rabbitmq:
+          additionalConfig: |
+            vm_memory_high_watermark.relative = 0.9
         resources:
           requests:
             cpu: 500m