diff --git a/.github/updatecli.yaml b/.github/updatecli.yaml
index 514e6e8d..bc2e00d1 100644
--- a/.github/updatecli.yaml
+++ b/.github/updatecli.yaml
@@ -6,7 +6,10 @@ sources:
     spec:
       image: "zammad/zammad-docker-compose"
       architecture: "linux/amd64"
-      tagfilter: "6\\.3\\.1-\\d{3}"
+      tagfilter: "^6\\.4\\.0$"
+      # tagfilter: "^6\\.4\\.0-\\d{1}"
+      # tagfilter: "^6\\.4\\.0-\\d{2}"
+      # tagfilter: "^6\\.4\\.0-\\d{3}"
   alpine:
     kind: dockerimage
     spec:
@@ -21,35 +24,35 @@ sources:
       url: https://charts.bitnami.com/bitnami
       name: elasticsearch
       versionfilter:
-        pattern: "19.x.x"
+        pattern: "21.x.x"
   minio:
     kind: helmchart
     spec:
       url: https://charts.bitnami.com/bitnami
       name: minio
       versionfilter:
-        pattern: "13.x.x"
+        pattern: "14.x.x"
   memcached:
     kind: helmchart
     spec:
       url: https://charts.bitnami.com/bitnami
       name: memcached
       versionfilter:
-        pattern: "6.x.x"
+        pattern: "7.x.x"
   postgresql:
     kind: helmchart
     spec:
       url: https://charts.bitnami.com/bitnami
       name: postgresql
       versionfilter:
-        pattern: "12.x.x"
+        pattern: "16.x.x"
   redis:
     kind: helmchart
     spec:
       url: https://charts.bitnami.com/bitnami
       name: redis
       versionfilter:
-        pattern: "17.x.x"
+        pattern: "20.x.x"
 
 conditions: {}
 
diff --git a/zammad/Chart.yaml b/zammad/Chart.yaml
index 872af1e6..4fe45681 100755
--- a/zammad/Chart.yaml
+++ b/zammad/Chart.yaml
@@ -1,7 +1,7 @@
 apiVersion: v2
 name: zammad
-version: 12.5.1
-appVersion: 6.3.1-196
+version: 13.0.0
+appVersion: 6.4.0
 description: Zammad is a web based open source helpdesk/customer support system with many features to manage customer communication via several channels like telephone, facebook, twitter, chat and e-mails.
 home: https://zammad.org
 icon: https://raw.githubusercontent.com/zammad/zammad-documentation/main/images/zammad_logo_600x520.png
@@ -16,21 +16,21 @@ maintainers:
 dependencies:
   - name: elasticsearch
     repository: https://charts.bitnami.com/bitnami
-    version: 19.21.2
+    version: 21.3.22
     condition: zammadConfig.elasticsearch.enabled
   - name: minio
-    version: 13.8.4
+    version: 14.8.2
     repository: https://charts.bitnami.com/bitnami
     condition: zammadConfig.minio.enabled
   - name: memcached
-    version: 6.14.0
+    version: 7.5.2
     repository: https://charts.bitnami.com/bitnami
     condition: zammadConfig.memcached.enabled
   - name: postgresql
-    version: 12.12.10
+    version: 16.1.1
     repository: https://charts.bitnami.com/bitnami
     condition: zammadConfig.postgresql.enabled
   - name: redis
-    version: 17.17.1
+    version: 20.2.1
     repository: https://charts.bitnami.com/bitnami
     condition: zammadConfig.redis.enabled
diff --git a/zammad/README.md b/zammad/README.md
index ee4af063..9643002f 100644
--- a/zammad/README.md
+++ b/zammad/README.md
@@ -156,6 +156,12 @@ zammadConfig:
 
 ## Upgrading
 
+### From Chart Version 12.x to 13.0.0
+
+- All subcharts received updates to the latest major version. Please refer to their upgrading instructions.
+- Note especially https://artifacthub.io/packages/helm/bitnami/postgresql#upgrading, because the upgrade to Postgesql 17
+  will require manual action to upgrade the cluster data to the new version.
+
 ### From Chart Version 11.x to 12.0.0
 
 #### The Previous `StatefulSet` Was Split up into `Deployments`