diff --git a/ansible/group_vars/logs.nimbus.yml b/ansible/group_vars/logs.nimbus.yml
index a88f54e..65a83aa 100644
--- a/ansible/group_vars/logs.nimbus.yml
+++ b/ansible/group_vars/logs.nimbus.yml
@@ -36,6 +36,11 @@ es_number_of_shards: 3
 # Since Nimbus logs are low-value we don't need replicas.
 es_number_of_replicas: 0
 
+# JVM Memory settings
+es_jvm_heap_auto: false
+es_jvm_min_heap: 48g
+es_jvm_max_heap: 48g
+
 # Open Ports
 open_ports_default_comment: 'ElasticSearch'
 open_ports_default_chain: 'VPN'