diff --git a/trainer-upgrade/elastic/elastic.yaml b/trainer-upgrade/elastic/elastic.yaml
index f57f783..bd9592c 100644
--- a/trainer-upgrade/elastic/elastic.yaml
+++ b/trainer-upgrade/elastic/elastic.yaml
@@ -49,6 +49,8 @@ spec:
               value: "elastic-0,elastic-1,elastic-2"
             - name: xpack.security.enabled
               value: "true"
+            - name: xpack.security.transport.ssl.enabled
+              value: "true"
             - name: xpack.monitoring.collection.enabled
               value: "true"
             - name: ES_JAVA_OPTS