diff --git a/charts/stable/ser2sock/Chart.yaml b/charts/stable/ser2sock/Chart.yaml
index d3c36b98..0d00535e 100644
--- a/charts/stable/ser2sock/Chart.yaml
+++ b/charts/stable/ser2sock/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: 1.0.0
 description: Serial to Socket Redirector
 name: ser2sock
-version: 4.0.0
+version: 4.0.1
 kubeVersion: ">=1.16.0-0"
 keywords:
 - ser2sock
diff --git a/charts/stable/ser2sock/README.md b/charts/stable/ser2sock/README.md
index ea6c787a..7e0923db 100644
--- a/charts/stable/ser2sock/README.md
+++ b/charts/stable/ser2sock/README.md
@@ -1,6 +1,6 @@
 # ser2sock
 
-![Version: 4.0.0](https://img.shields.io/badge/Version-4.0.0-informational?style=flat-square) ![AppVersion: 1.0.0](https://img.shields.io/badge/AppVersion-1.0.0-informational?style=flat-square)
+![Version: 4.0.1](https://img.shields.io/badge/Version-4.0.1-informational?style=flat-square) ![AppVersion: 1.0.0](https://img.shields.io/badge/AppVersion-1.0.0-informational?style=flat-square)
 
 Serial to Socket Redirector
 
@@ -109,7 +109,7 @@ affinity:
 | env | object | See below | environment variables. See [image docs](https://github.com/tenstartups/ser2sock) for more details. |
 | env.BAUD_RATE | int | `115200` | Serial device baud rate |
 | env.LISTENER_PORT | string | `"{{ .Values.service.main.ports.server.port }}"` | Port where ser2sock listens |
-| env.SERIAL_DEVICE | string | `"{{ .Values.persistence.usb.hostPath }}"` | Path to the serial device |
+| env.SERIAL_DEVICE | string | `"{{ .Values.persistence.usb.mountPath }}"` | Path to the serial device |
 | env.TZ | string | `"UTC"` | Set the container timezone |
 | image.pullPolicy | string | `"Always"` | image pull policy |
 | image.repository | string | `"tenstartups/ser2sock"` | image repository |
@@ -126,6 +126,12 @@ All notable changes to this application Helm chart will be documented in this fi
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+### [4.0.1]
+
+#### Fixed
+
+- Default device path used by ser2sock now points to the device inside the container.
+
 ### [4.0.0]
 
 #### Changed
@@ -161,6 +167,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - N/A
 
+[4.0.1]: #401
 [4.0.0]: #400
 [3.0.0]: #300
 [1.0.0]: #100
diff --git a/charts/stable/ser2sock/README_CHANGELOG.md.gotmpl b/charts/stable/ser2sock/README_CHANGELOG.md.gotmpl
index 428a46d3..b02c1ede 100644
--- a/charts/stable/ser2sock/README_CHANGELOG.md.gotmpl
+++ b/charts/stable/ser2sock/README_CHANGELOG.md.gotmpl
@@ -9,6 +9,12 @@ All notable changes to this application Helm chart will be documented in this fi
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+### [4.0.1]
+
+#### Fixed
+
+- Default device path used by ser2sock now points to the device inside the container.
+
 ### [4.0.0]
 
 #### Changed
@@ -44,6 +50,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - N/A
 
+[4.0.1]: #401
 [4.0.0]: #400
 [3.0.0]: #300
 [1.0.0]: #100
diff --git a/charts/stable/ser2sock/values.yaml b/charts/stable/ser2sock/values.yaml
index 9e7eb144..ea10476e 100644
--- a/charts/stable/ser2sock/values.yaml
+++ b/charts/stable/ser2sock/values.yaml
@@ -21,7 +21,7 @@ env:
   # -- Port where ser2sock listens
   LISTENER_PORT: "{{ .Values.service.main.ports.server.port }}"
   # -- Path to the serial device
-  SERIAL_DEVICE: "{{ .Values.persistence.usb.hostPath }}"
+  SERIAL_DEVICE: "{{ .Values.persistence.usb.mountPath }}"
   # -- Serial device baud rate
   BAUD_RATE: 115200
 
@@ -51,7 +51,7 @@ persistence:
   usb:
     enabled: false
     type: hostPath
-    hostPath: /dev/ttyUSB0
+    mountPath: /dev/ttyUSB0
 
 securityContext:
   # -- (bool) Privileged securityContext may be required if USB controller is accessed directly through the host machine