diff --git a/chart/values.yaml b/chart/values.yaml
index 272157e4c36d55b0afce9db5dcf6d162605faa5e..b25a40f9ef6e1231f684960ac466fc06c05a36ef 100644
--- a/chart/values.yaml
+++ b/chart/values.yaml
@@ -1231,7 +1231,7 @@ addons:
     git:
       repo: https://repo1.dso.mil/platform-one/big-bang/apps/collaboration-tools/mattermost.git
       path: "./chart"
-      tag: "7.2.0-bb.1"
+      tag: "7.3.0-bb.0"
 
     # -- Flux reconciliation overrides specifically for the Mattermost Package
     flux: {}