diff --git a/docs/_releasenotes/2224.change.etcdbackup-updated-to-0.20251208.1 b/docs/_releasenotes/2224.change.etcdbackup-updated-to-0.20251208.1
new file mode 100644
index 0000000000000000000000000000000000000000..b67429e67463399fda08bf94ecce8ea33214e498
--- /dev/null
+++ b/docs/_releasenotes/2224.change.etcdbackup-updated-to-0.20251208.1
@@ -0,0 +1 @@
+Updated default version of helm chart etcdbackup from 0.20251023.0 to 0.20251208.1
diff --git a/docs/user/reference/options/yk8s.k8s-service-layer.etcd-backup.rst b/docs/user/reference/options/yk8s.k8s-service-layer.etcd-backup.rst
index 69a4373311a5f98406cebb911926913ea3aabdb1..db7bddc3604753f134d2420c3e06b04fa23ba2f3 100644
--- a/docs/user/reference/options/yk8s.k8s-service-layer.etcd-backup.rst
+++ b/docs/user/reference/options/yk8s.k8s-service-layer.etcd-backup.rst
@@ -189,7 +189,7 @@ If the version shall be unpinned, set to: ``null``.
 
 **Default:**::
 
-  "0.20251023.0"
+  "0.20251208.1"
 
 
 **Example:**::
diff --git a/nix/yk8s/k8s-supplements/etcd-backup.nix b/nix/yk8s/k8s-supplements/etcd-backup.nix
index c7a94017578e135ba07cdd8aa9f60739df5d7cbb..e57dce0d46bc170cee59304e69b7beddcff823ee 100644
--- a/nix/yk8s/k8s-supplements/etcd-backup.nix
+++ b/nix/yk8s/k8s-supplements/etcd-backup.nix
@@ -138,7 +138,7 @@ in {
       defaultRepoUrl = "https://charts.yaook.cloud/operator/stable/";
       defaultChartRef = "etcdbackup";
       # renovate: datasource=helm depName=etcdbackup registryUrl=https://charts.yaook.cloud/operator/stable/
-      defaultChartVersion = "0.20251023.0";
+      defaultChartVersion = "0.20251208.1";
       defaultReleaseNamespace = "kube-system";
       defaultReleaseName = "etcd-backup";
       valuesDocUrl = "https://gitlab.com/yaook/operator/-/blob/devel/yaook/helm_builder/Charts/etcdbackup/values-template.yaml.j2";