diff --git a/manifests/2.17.0/opensearch-2.17.0-test.yml b/manifests/2.17.0/opensearch-2.17.0-test.yml
index e3530d1174..68c2b86d62 100644
--- a/manifests/2.17.0/opensearch-2.17.0-test.yml
+++ b/manifests/2.17.0/opensearch-2.17.0-test.yml
@@ -164,3 +164,6 @@ components:
       test-configs:
         - with-security
         - without-security
+      additional-cluster-configs:
+        opensearch.experimental.feature.application_templates.enabled: true
+        cluster.application_templates.enabled: true
diff --git a/manifests/3.0.0/opensearch-3.0.0-test.yml b/manifests/3.0.0/opensearch-3.0.0-test.yml
index 4016b4094b..d81f45c807 100644
--- a/manifests/3.0.0/opensearch-3.0.0-test.yml
+++ b/manifests/3.0.0/opensearch-3.0.0-test.yml
@@ -149,3 +149,6 @@ components:
       test-configs:
         - with-security
         - without-security
+      additional-cluster-configs:
+        opensearch.experimental.feature.application_templates.enabled: true
+        cluster.application_templates.enabled: true