diff --git a/CHANGELOG.md b/CHANGELOG.md
index 99973c8a66301b0e053e8c6e45dfe2eb485251b3..e5b94ee222a4840ee98b54a45fbdbb949f6f2428 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ---
+## [1.9.1]
+
+* [!534](https://repo1.dso.mil/platform-one/big-bang/bigbang/-/merge_requests/534): Bumping monitoring chart version - Addresses un-reconcilable state of monitoring package when upgrading from previous version of BigBang to 1.9.0 
+
 ## [1.9.0]
 
 * [!445](https://repo1.dso.mil/platform-one/big-bang/bigbang/-/merge_requests/445): Nexus added to BB
diff --git a/README.md b/README.md
index 531a93f2ea1826aa91bddb0aadf03307ec278558..4ac0cf86de20b0098b05b494730eba9aa52b42bd 100644
--- a/README.md
+++ b/README.md
@@ -136,7 +136,7 @@ To start using Big Bang, you will need to create your own Big Bang environment t
 | monitoring.enabled | bool | `true` | Toggle deployment of Monitoring (Prometheus, Grafana, and Alertmanager). |
 | monitoring.git.repo | string | `"https://repo1.dso.mil/platform-one/big-bang/apps/core/monitoring.git"` |  |
 | monitoring.git.path | string | `"./chart"` |  |
-| monitoring.git.tag | string | `"11.0.0-bb.21"` |  |
+| monitoring.git.tag | string | `"11.0.0-bb.22"` |  |
 | monitoring.flux | object | `{}` | Flux reconciliation overrides specifically for the Monitoring Package |
 | monitoring.sso.enabled | bool | `false` | Toggle SSO for monitoring components on and off |
 | monitoring.sso.prometheus.client_id | string | `""` | Prometheus OIDC client ID |
@@ -293,7 +293,7 @@ To start using Big Bang, you will need to create your own Big Bang environment t
 | addons.mattermostoperator.enabled | bool | `false` |  |
 | addons.mattermostoperator.git.repo | string | `"https://repo1.dso.mil/platform-one/big-bang/apps/collaboration-tools/mattermost-operator.git"` |  |
 | addons.mattermostoperator.git.path | string | `"./chart"` |  |
-| addons.mattermostoperator.git.tag | string | `"1.13.0-bb.3"` |  |
+| addons.mattermostoperator.git.tag | string | `"1.14.0-bb.1"` |  |
 | addons.mattermostoperator.flux | object | `{}` | Flux reconciliation overrides specifically for the Mattermost Operator Package |
 | addons.mattermostoperator.values | object | `{}` | Values to passthrough to the mattermost operator chart: https://repo1.dso.mil/platform-one/big-bang/apps/collaboration-tools/mattermost-operator/-/blob/main/chart/values.yaml |
 | addons.mattermostoperator.postRenderers | list | `[]` | Post Renderers.  See docs/postrenders.md |
diff --git a/base/gitrepository.yaml b/base/gitrepository.yaml
index 7d853a6cc2bdf24adb12d9a24662a71dcd345dd5..d44af630f30e8df636bc1f2789278a12261b7685 100644
--- a/base/gitrepository.yaml
+++ b/base/gitrepository.yaml
@@ -11,4 +11,4 @@ spec:
   interval: 10m
   url: https://repo1.dso.mil/platform-one/big-bang/bigbang.git
   ref:
-    tag: 1.9.0
+    tag: 1.9.1
diff --git a/chart/Chart.yaml b/chart/Chart.yaml
index d3a79d9a1156fb5fb2cc6d9ffbe0fe9318483104..ee16932878edf24062d98c9f79b50480a146faac 100644
--- a/chart/Chart.yaml
+++ b/chart/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v2
 name: bigbang
-version: 1.9.0
+version: 1.9.1
 description: Big Bang is a declarative, continuous delivery tool for core DoD hardened and approved packages into a Kubernetes cluster.
 
 type: application