diff --git a/molecule/elasticsearch_cluster-oss/converge.yml b/molecule/elasticsearch_cluster-oss/converge.yml
index 77b878c3..c0a571ab 100644
--- a/molecule/elasticsearch_cluster-oss/converge.yml
+++ b/molecule/elasticsearch_cluster-oss/converge.yml
@@ -10,6 +10,7 @@
     elasticsearch_jna_workaround: true
     elasticsearch_disable_systemcallfilterchecks: true
     elastic_release: 7
+    elasticsearch_heap: "1"
   tasks:
     - name: Include Elastics repos role
       include_role:
diff --git a/molecule/elasticsearch_cluster/converge.yml b/molecule/elasticsearch_cluster/converge.yml
index 8cd8fd47..c69b35b4 100644
--- a/molecule/elasticsearch_cluster/converge.yml
+++ b/molecule/elasticsearch_cluster/converge.yml
@@ -9,6 +9,7 @@
     elasticsearch_jna_workaround: true
     elasticsearch_disable_systemcallfilterchecks: true
     elastic_release: "{{ lookup('env', 'ELASTIC_RELEASE') | int}}"
+    elasticsearch_heap: "1"
   tasks:
     - name: Include Elastics repos role
       include_role:
diff --git a/molecule/elasticsearch_default/converge.yml b/molecule/elasticsearch_default/converge.yml
index 4d38d10f..8de6517d 100644
--- a/molecule/elasticsearch_default/converge.yml
+++ b/molecule/elasticsearch_default/converge.yml
@@ -11,6 +11,7 @@
     elasticsearch_jna_workaround: true
     elasticsearch_disable_systemcallfilterchecks: true
     elastic_release: "{{ lookup('env', 'ELASTIC_RELEASE') | int}}"
+    elasticsearch_heap: "1"
   tasks:
     - name: Include Elastics repos role
       include_role:
diff --git a/molecule/elasticsearch_no-security/converge.yml b/molecule/elasticsearch_no-security/converge.yml
index db8c846e..8d8cf03c 100644
--- a/molecule/elasticsearch_no-security/converge.yml
+++ b/molecule/elasticsearch_no-security/converge.yml
@@ -10,6 +10,7 @@
     elastic_security: false
     elasticsearch_jna_workaround: true
     elasticsearch_disable_systemcallfilterchecks: true
+    elasticsearch_heap: "1"
     elastic_release: 7
   tasks:
     - name: Include Elastics repos role
diff --git a/molecule/elasticstack_default/converge.yml b/molecule/elasticstack_default/converge.yml
index 0b61917e..a3417285 100644
--- a/molecule/elasticstack_default/converge.yml
+++ b/molecule/elasticstack_default/converge.yml
@@ -7,6 +7,7 @@
     elasticsearch_jna_workaround: true
     elasticsearch_disable_systemcallfilterchecks: true
     elastic_release: "{{ lookup('env', 'ELASTIC_RELEASE') | int}}"
+    elasticsearch_heap: "1"
   tasks:
     - name: Include Elastic Repos
       include_role: