diff --git a/charts/stable/mattermost/Chart.yaml b/charts/stable/mattermost/Chart.yaml
index b4169ffae01..b3ed5c8e74a 100644
--- a/charts/stable/mattermost/Chart.yaml
+++ b/charts/stable/mattermost/Chart.yaml
@@ -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: 9.0.20
+version: 9.0.21
 annotations:
   truecharts.org/catagories: |
     - hosting
diff --git a/charts/stable/mattermost/values.yaml b/charts/stable/mattermost/values.yaml
index df8347ec2b5..539d71ce266 100644
--- a/charts/stable/mattermost/values.yaml
+++ b/charts/stable/mattermost/values.yaml
@@ -1,6 +1,6 @@
 image:
   repository: tccr.io/truecharts/mattermost
-  tag: v9.1.0@sha256:cae7e53e86e7bfc13d0ee95dc1bda46a293f1f111a1db9506af68e3c2f6b7166
+  tag: v9.1.0@sha256:6a01ebb1adb99531ab0487e9023a9cbb4e7c28fd1af60993f62596f385973c12
   pullPolicy: IfNotPresent
 
 workload: