diff --git a/charts/opensearch-cluster/templates/opensearch-cluster-cr.yaml b/charts/opensearch-cluster/templates/opensearch-cluster-cr.yaml
index 79f3b70b..4e5b2fd1 100644
--- a/charts/opensearch-cluster/templates/opensearch-cluster-cr.yaml
+++ b/charts/opensearch-cluster/templates/opensearch-cluster-cr.yaml
@@ -332,6 +332,10 @@ spec:
         secret:
           name: {{ .Values.opensearchCluster.security.tls.transport.secret.name }}
         {{- end }}
+        {{- if .Values.opensearchCluster.security.tls.transport.caSecret }}
+        caSecret:
+          name: {{ .Values.opensearchCluster.security.tls.transport.caSecret.name }}
+        {{- end }}
         {{- if .Values.opensearchCluster.security.tls.transport.adminDn }}
         adminDn:
           {{ toYaml .Values.opensearchCluster.security.tls.transport.adminDn | nindent 10 }}
@@ -350,6 +354,10 @@ spec:
         secret:
           name: {{ .Values.opensearchCluster.security.tls.http.secret.name }}
         {{- end }}
+        {{- if .Values.opensearchCluster.security.tls.http.caSecret }}
+        caSecret:
+          name: {{ .Values.opensearchCluster.security.tls.http.caSecret.name }}
+        {{- end }}
       {{- end }}
     {{- end }}
   {{- end }}