diff --git a/zammad/Chart.yaml b/zammad/Chart.yaml
index 8d0dbd1d..96fbf8e0 100755
--- a/zammad/Chart.yaml
+++ b/zammad/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v2
 name: zammad
-version: 15.2.5
+version: 15.3.0
 appVersion: 6.5.2-22
 description: Zammad is a web based open source helpdesk/customer support system with many features to manage customer communication via several channels like telephone, facebook, twitter, chat and e-mails.
 home: https://zammad.org
diff --git a/zammad/templates/_helpers.tpl b/zammad/templates/_helpers.tpl
index 80c4e3a6..16fa3ba2 100755
--- a/zammad/templates/_helpers.tpl
+++ b/zammad/templates/_helpers.tpl
@@ -165,6 +165,13 @@ S3 access URL
   value: "http://{{ .Values.minio.auth.rootUser }}:{{ .Values.minio.auth.rootPassword }}@{{ include "zammad.fullname" . }}-minio:9000/zammad?region=zammad&force_path_style=true"
 {{- end -}}
 {{- end -}}
+{{- if .Values.secrets.s3.useExisting -}}
+- name: S3_URL
+  valueFrom:
+    secretKeyRef:
+      name: {{ .Values.secrets.s3.secretName }}
+      key: {{ .Values.secrets.s3.secretKey }}
+{{- end -}}
 {{- end -}}
 {{- end -}}
 
diff --git a/zammad/values.yaml b/zammad/values.yaml
index 30c5d361..bac79c32 100755
--- a/zammad/values.yaml
+++ b/zammad/values.yaml
@@ -53,6 +53,10 @@ secrets:
     useExisting: false
     secretKey: redis-password
     secretName: redis-pass
+  s3:
+    useExisting: false
+    secretKey: s3-url
+    secretName: s3-url
 
 securityContext:
   fsGroup: 1000