diff --git a/charts/kubernetes-etcd-backup/Chart.yaml b/charts/kubernetes-etcd-backup/Chart.yaml
index 5a41fd4d..221d996b 100644
--- a/charts/kubernetes-etcd-backup/Chart.yaml
+++ b/charts/kubernetes-etcd-backup/Chart.yaml
@@ -3,7 +3,7 @@ apiVersion: v2
 name: kubernetes-etcd-backup
 description: Chart for kubernetes-etcd-backup solution
 type: application
-version: 1.4.1
+version: 1.4.2
 appVersion: v1.2.1
 keywords:
   - kubernetes-etcd-backup
@@ -18,10 +18,7 @@ maintainers:
     email: support@adfinis.com
     url: https://adfinis.com
 annotations:
-  artifacthub.io/containsSecurityUpdates: "true"
+  artifacthub.io/containsSecurityUpdates: "false"
   artifacthub.io/changes: |
-    - kind: changed
-      description: "bump appVersion to v1.2.1"
-      links:
-        - name: "kubernetes-etcd-backup v1.2.1"
-          url: https://github.com/adfinis/kubernetes-etcd-backup/releases/tag/v1.2.1
+    - kind: fixed
+      description: "disallow concurrent job runs"
diff --git a/charts/kubernetes-etcd-backup/README.md b/charts/kubernetes-etcd-backup/README.md
index 7175b665..011b67e6 100644
--- a/charts/kubernetes-etcd-backup/README.md
+++ b/charts/kubernetes-etcd-backup/README.md
@@ -1,6 +1,6 @@
 # kubernetes-etcd-backup
 
-![Version: 1.4.1](https://img.shields.io/badge/Version-1.4.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.2.1](https://img.shields.io/badge/AppVersion-v1.2.1-informational?style=flat-square)
+![Version: 1.4.2](https://img.shields.io/badge/Version-1.4.2-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.2.1](https://img.shields.io/badge/AppVersion-v1.2.1-informational?style=flat-square)
 
 Chart for kubernetes-etcd-backup solution
 
diff --git a/charts/kubernetes-etcd-backup/templates/cronjob.yaml b/charts/kubernetes-etcd-backup/templates/cronjob.yaml
index 197b75a8..25fea78b 100644
--- a/charts/kubernetes-etcd-backup/templates/cronjob.yaml
+++ b/charts/kubernetes-etcd-backup/templates/cronjob.yaml
@@ -5,6 +5,7 @@ metadata:
 spec:
   startingDeadlineSeconds: 600
   schedule: {{ .Values.backup.schedule | quote }}
+  concurrencyPolicy: Forbid
   jobTemplate:
     spec:
       # Retrying this job is not considered safe, because of that we fail the