diff --git a/chart/values.yaml b/chart/values.yaml
index d52b8143f45c3ccfbed84aa1bea9369956e9a115..f174d7ba1b4cac9fe10ba6776a2c59ae3b8a8d8d 100644
--- a/chart/values.yaml
+++ b/chart/values.yaml
@@ -1025,7 +1025,7 @@ addons:
     git:
       repo: https://repo1.dso.mil/platform-one/big-bang/apps/collaboration-tools/mattermost.git
       path: "./chart"
-      tag: "0.2.4-bb.0"
+      tag: "0.3.0-bb.0"
 
     # -- Flux reconciliation overrides specifically for the Mattermost Package
     flux: {}