diff --git a/charts/stable/mattermost/Chart.yaml b/charts/stable/mattermost/Chart.yaml
index f6718f29c67..62328b17057 100644
--- a/charts/stable/mattermost/Chart.yaml
+++ b/charts/stable/mattermost/Chart.yaml
@@ -1,5 +1,5 @@
 apiVersion: v2
-appVersion: "8.1.0"
+appVersion: "9.0.0"
 dependencies:
   - name: common
     repository: https://library-charts.truecharts.org
@@ -21,7 +21,7 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/mattermost
   - https://github.com/mattermost/mattermost-server
   - https://github.com/mattermost/docker
-version: 9.0.7
+version: 9.0.8
 annotations:
   truecharts.org/catagories: |
     - hosting
diff --git a/charts/stable/mattermost/values.yaml b/charts/stable/mattermost/values.yaml
index e75ce33c612..59c821ca381 100644
--- a/charts/stable/mattermost/values.yaml
+++ b/charts/stable/mattermost/values.yaml
@@ -1,6 +1,6 @@
 image:
   repository: tccr.io/truecharts/mattermost
-  tag: v8.1.0@sha256:e0a7bc7e6952f14ca8dca9cb97a9f24d5029d658ccccc4e5c6337e85bb57ae7e
+  tag: v9.0.0@sha256:f822378ffce26b88275e18562e029a7eda02a666b5d1a43e077e4271356c38e5
   pullPolicy: IfNotPresent
 
 workload: