diff --git a/.github/ct.yaml b/.github/ct.yaml
index 759f6410..17ab77f2 100644
--- a/.github/ct.yaml
+++ b/.github/ct.yaml
@@ -4,7 +4,7 @@ chart-repos:
   - bitnami=https://charts.bitnami.com/bitnami
 check-version-increment: true
 debug: true
-upgrade: true
+# upgrade: true # Causes issues because of low performance on default GitHub actions servers.
 target-branch: main
 namespace: zammad
 release-label: zammad
diff --git a/.github/updatecli.yaml b/.github/updatecli.yaml
new file mode 100644
index 00000000..e82167fe
--- /dev/null
+++ b/.github/updatecli.yaml
@@ -0,0 +1,96 @@
+name: "Update Zammad version and dependency charts (patch and minor only)"
+
+sources:
+  zammad:
+    kind: dockerimage
+    spec:
+      image: "zammad/zammad-docker-compose"
+      architecture: "linux/amd64"
+      tagfilter: "6\\.3.*"
+  elasticsearch:
+    kind: helmchart
+    spec:
+      url: https://charts.bitnami.com/bitnami
+      name: elasticsearch
+      versionfilter:
+        pattern: "19.x.x"
+  minio:
+    kind: helmchart
+    spec:
+      url: https://charts.bitnami.com/bitnami
+      name: minio
+      versionfilter:
+        pattern: "13.x.x"
+  memcached:
+    kind: helmchart
+    spec:
+      url: https://charts.bitnami.com/bitnami
+      name: memcached
+      versionfilter:
+        pattern: "6.x.x"
+  postgresql:
+    kind: helmchart
+    spec:
+      url: https://charts.bitnami.com/bitnami
+      name: postgresql
+      versionfilter:
+        pattern: "12.x.x"
+  redis:
+    kind: helmchart
+    spec:
+      url: https://charts.bitnami.com/bitnami
+      name: redis
+      versionfilter:
+        pattern: "17.x.x"
+
+conditions: {}
+
+targets:
+  zammad:
+    kind: helmchart
+    sourceid: zammad
+    spec:
+      name: "zammad"
+      file: "Chart.yaml"
+      key: "$.appVersion"
+      versionincrement: patch
+  elasticsearch:
+    kind: helmchart
+    sourceid: elasticsearch
+    spec:
+      name: "zammad"
+      file: "Chart.yaml"
+      key: "$.dependencies[0].version"
+      versionincrement: patch
+  minio:
+    kind: helmchart
+    sourceid: minio
+    spec:
+      name: "zammad"
+      file: "Chart.yaml"
+      key: "$.dependencies[1].version"
+      versionincrement: patch
+  memcached:
+    kind: helmchart
+    sourceid: memcached
+    spec:
+      name: "zammad"
+      file: "Chart.yaml"
+      key: "$.dependencies[2].version"
+      versionincrement: patch
+  postgresql:
+    kind: helmchart
+    sourceid: postgresql
+    spec:
+      name: "zammad"
+      file: "Chart.yaml"
+      key: "$.dependencies[3].version"
+      versionincrement: patch
+  redis:
+    kind: helmchart
+    sourceid: redis
+    spec:
+      name: "zammad"
+      file: "Chart.yaml"
+      key: "$.dependencies[4].version"
+      versionincrement: patch
\ No newline at end of file
diff --git a/zammad/Chart.yaml b/zammad/Chart.yaml
index b0917184..eac0db3a 100644
--- a/zammad/Chart.yaml
+++ b/zammad/Chart.yaml
@@ -1,7 +1,7 @@
 apiVersion: v2
 name: zammad
-version: 12.3.0
-appVersion: 6.3.1-91
+version: 12.3.1
+appVersion: 6.3.1-99
 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
@@ -16,7 +16,7 @@ maintainers:
 dependencies:
   - name: elasticsearch
     repository: https://charts.bitnami.com/bitnami
-    version: 19.17.6
+    version: 19.21.2
     condition: zammadConfig.elasticsearch.enabled
   - name: minio
     version: 13.8.4