diff --git a/ansible/esupgradelatest.yml b/ansible/esupgradelatest.yml
index ce5fffafdfd868b56aa6fe46b8c447c95f9e1d6c..94ab12573479aa90d9118c567d274e2529c55503 100644
--- a/ansible/esupgradelatest.yml
+++ b/ansible/esupgradelatest.yml
@@ -18,7 +18,6 @@
           node.master: "{{ es_etc_node_master | default('true') }}",
           bootstrap.memory_lock: true,
         },
-        es_heap_size: "2g",
         es_etc_discovery_zen_ping_unicast_hosts: "{{ groups['log-es-2'] }}",
         es_etc_cluster_name: "{{ node_name }}"
       }
diff --git a/ansible/provision.yml b/ansible/provision.yml
index 8fc0d305ff915eab3c9102d29fd8a1cce20d6b03..b85eeaad5e244dc86857c926736f49e8eacda9c0 100644
--- a/ansible/provision.yml
+++ b/ansible/provision.yml
@@ -29,7 +29,6 @@
           node.master: "{{ es_etc_node_master | default('true') }}",
           bootstrap.memory_lock: true,
         },
-        es_heap_size: "2g",
         es_etc_discovery_zen_ping_unicast_hosts: "{{ groups['es'] }}",
         es_etc_cluster_name: "{{ app_es_etc_cluster_name }}"
       }