diff --git a/charts/priobike-mqtt/Chart.yaml b/charts/priobike-mqtt/Chart.yaml
index f0722e2..c371293 100644
--- a/charts/priobike-mqtt/Chart.yaml
+++ b/charts/priobike-mqtt/Chart.yaml
@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.3.0
+version: 0.4.0
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
diff --git a/charts/priobike-mqtt/templates/config-map.yaml b/charts/priobike-mqtt/templates/config-map.yaml
index 6c45704..ebc81ae 100644
--- a/charts/priobike-mqtt/templates/config-map.yaml
+++ b/charts/priobike-mqtt/templates/config-map.yaml
@@ -5,12 +5,12 @@ metadata:
 data:
   MQTT_PORT: {{ .Values.containerPort | quote }}
   EMQX_CLUSTER__DISCOVERY_STRATEGY: dns
-  EMQX_CLUSTER__DNS__NAME: |
+  EMQX_CLUSTER__DNS__NAME: |-
     priobike-mqtt-service.
     {{- (.Values.global).namespace | default .Values.namespace | required "A valid .Values.namespace or .Values.global.namespace entry required!" -}}
     .svc.cluster.local
   EMQX_CLUSTER__DNS__RECORD_TYPE: a
-  EMQX_AUTHENTICATION__1__URL: |
+  EMQX_AUTHENTICATION__1__URL: |-
     http://
     {{- required "A valid .Values.mqttAuthenticatorServiceName entry required!" .Values.mqttAuthenticatorServiceName -}}
     .