diff --git a/charts/semantic-hub/Chart.yaml b/charts/semantic-hub/Chart.yaml
index 846eb10..d5635a0 100644
--- a/charts/semantic-hub/Chart.yaml
+++ b/charts/semantic-hub/Chart.yaml
@@ -26,7 +26,7 @@ sources:
   - https://github.com/eclipse-tractusx/sldt-semantic-hub
 
 type: application
-version: 0.3.0
+version: 0.3.1
 appVersion: 0.4.0
 dependencies:
   - repository: https://charts.bitnami.com/bitnami
diff --git a/charts/semantic-hub/README.md b/charts/semantic-hub/README.md
index 40e4a1b..ee7b585 100644
--- a/charts/semantic-hub/README.md
+++ b/charts/semantic-hub/README.md
@@ -1,6 +1,6 @@
 # semantic-hub
 
-![Version: 0.1.24](https://img.shields.io/badge/Version-0.1.24-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 0.2.10-M1](https://img.shields.io/badge/AppVersion-0.2.10--M1-informational?style=flat-square)
+![Version: 0.3.1](https://img.shields.io/badge/Version-0.3.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 0.4.0](https://img.shields.io/badge/AppVersion-0.4.0-informational?style=flat-square)
 
 **Helm Chart for the Catena-X Semantic Hub Application** <br/>
 This Helm charts installs the Semantic Hub application and its dependencies. 
diff --git a/charts/semantic-hub/templates/hub/hub-deployment.yaml b/charts/semantic-hub/templates/hub/hub-deployment.yaml
index b49f74e..7179b1e 100644
--- a/charts/semantic-hub/templates/hub/hub-deployment.yaml
+++ b/charts/semantic-hub/templates/hub/hub-deployment.yaml
@@ -47,6 +47,7 @@ spec:
           securityContext:
             runAsUser: 100
             allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
           {{- if not .Values.hub.authentication }}
           args: ["--spring.profiles.active=local"]
           {{- end }}
@@ -84,5 +85,11 @@ spec:
             failureThreshold: {{ .Values.hub.readinessProbe.failureThreshold }}
           resources:
 {{ .Values.hub.resources | toYaml | indent 12 }}
+          volumeMounts:
+            - mountPath: /tmp
+              name: empty-tmp
+      volumes:
+        - name: empty-tmp
+          emptyDir: {}
       imagePullSecrets:
 {{ .Values.hub.imagePullSecrets | toYaml | indent 8 }}