diff --git a/charts/stable/mattermost/Chart.yaml b/charts/stable/mattermost/Chart.yaml
index 0f29230c128..54cfbe25174 100644
--- a/charts/stable/mattermost/Chart.yaml
+++ b/charts/stable/mattermost/Chart.yaml
@@ -1,5 +1,5 @@
 apiVersion: v2
-appVersion: "9.3.0"
+appVersion: "9.3"
 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: 9.0.54
+version: 9.0.55
 annotations:
   truecharts.org/category: hosting
   truecharts.org/SCALE-support: "true"
diff --git a/charts/stable/mattermost/values.yaml b/charts/stable/mattermost/values.yaml
index 5bd7efd6357..52c9cf75e53 100644
--- a/charts/stable/mattermost/values.yaml
+++ b/charts/stable/mattermost/values.yaml
@@ -1,6 +1,6 @@
 image:
   repository: mattermost/mattermost-enterprise-edition
-  tag: release-9.3@sha256:d8b04448e4d61f6283bb5a1b00a3e42bf9aee18e07166e6a4c8bac30435c0dd8
+  tag: release-9.3@sha256:0c6edf7c0c4eeff0717c990661e0f9855cbf9a479e10d98225348b526261aa58
   pullPolicy: IfNotPresent
 workload:
   main: