diff --git a/chart/values.yaml b/chart/values.yaml
index 17c71fe336b20c7f66570bdae05077b20cdc9a42..4d4cb5caf69e4dcff0ae9479dc5f029911ae2e82 100644
--- a/chart/values.yaml
+++ b/chart/values.yaml
@@ -1248,7 +1248,7 @@ addons:
     git:
       repo: https://repo1.dso.mil/platform-one/big-bang/apps/collaboration-tools/mattermost.git
       path: "./chart"
-      tag: "7.3.0-bb.1"
+      tag: "7.4.0-bb.0"
 
     # -- Flux reconciliation overrides specifically for the Mattermost Package
     flux: {}
diff --git a/tests/test-values.yaml b/tests/test-values.yaml
index 944fc6310bcf2ed9abc6512b7c4eb6f03f17667b..c2ce258fd39d11381ff642afc49c5b83fce327c0 100644
--- a/tests/test-values.yaml
+++ b/tests/test-values.yaml
@@ -1213,6 +1213,7 @@ addons:
       bbtests:
         enabled: true
         cypress:
+          image: registry.dso.mil/platform-one/big-bang/pipeline-templates/pipeline-templates/cypress/kubectl:8.3.1
           envs:
             cypress_url: https://chat.bigbang.dev