diff --git a/charts/zwave2mqtt/Chart.yaml b/charts/zwave2mqtt/Chart.yaml
index 4c6662f9..7f0ec689 100644
--- a/charts/zwave2mqtt/Chart.yaml
+++ b/charts/zwave2mqtt/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: 4.0.3
 description: Fully configurable Zwave to MQTT gateway and Control Panel using NodeJS and Vue
 name: zwave2mqtt
-version: 3.0.1
+version: 4.0.0
 keywords:
   - zwave
   - mqtt
diff --git a/charts/zwave2mqtt/README.md b/charts/zwave2mqtt/README.md
index 3e241c68..281bc911 100644
--- a/charts/zwave2mqtt/README.md
+++ b/charts/zwave2mqtt/README.md
@@ -62,3 +62,14 @@ Alternatively, a YAML file that specifies the values for the above parameters ca
 ```console
 helm install --name my-release -f values.yaml stable/zwave2mqtt
 ```
+
+## Upgrading an existing Release to a new major version
+
+A major chart version change (like 2.2.2 -> 3.0.0) indicates that there is an
+incompatible breaking change needing manual actions.
+
+### Upgrading from 3.x.x to 4.x.x
+
+Upgrading to this release it is suggested to enable the flag in Settings > Zwave > Auto update database
+
+In order to use an updated configuration for the devices, you have to send a refreshNodeInfo to that node
diff --git a/charts/zwave2mqtt/templates/deployment.yaml b/charts/zwave2mqtt/templates/deployment.yaml
index 5629c686..0da042e3 100644
--- a/charts/zwave2mqtt/templates/deployment.yaml
+++ b/charts/zwave2mqtt/templates/deployment.yaml
@@ -65,9 +65,6 @@ spec:
               name: usb
             - mountPath: /usr/src/app/store
               name: config
-            - mountPath: /usr/local/etc/openzwave
-              name: config
-              subPath: openzwave
           resources:
             {{- toYaml .Values.resources | nindent 12 }}
       volumes: