diff --git a/docs/sources/helm-charts/mimir-distributed/_index.md b/docs/sources/helm-charts/mimir-distributed/_index.md
index 8271fea916c..a784529287b 100644
--- a/docs/sources/helm-charts/mimir-distributed/_index.md
+++ b/docs/sources/helm-charts/mimir-distributed/_index.md
@@ -8,8 +8,8 @@ keywords:
   - Grafana Enterprise Metrics
   - Grafana metrics
 cascade:
-  MIMIR_VERSION: "v2.14.x"
-  GEM_VERSION: "v2.14.x"
+  MIMIR_VERSION: "v2.15.x"
+  GEM_VERSION: "v2.15.x"
   ALLOY_VERSION: "latest"
 ---
 
diff --git a/operations/helm/charts/mimir-distributed/CHANGELOG.md b/operations/helm/charts/mimir-distributed/CHANGELOG.md
index 5b6cccba473..64444e9ad92 100644
--- a/operations/helm/charts/mimir-distributed/CHANGELOG.md
+++ b/operations/helm/charts/mimir-distributed/CHANGELOG.md
@@ -31,6 +31,7 @@ Entries should include a reference to the Pull Request that introduced the chang
 
 ## 5.6.0-rc.0
 
+* [ENHANCEMENT] Upgrade Mimir and GEM to [2.15.0-rc.0](https://github.com/grafana/mimir/blob/main/CHANGELOG.md#2150). #10369
 * [CHANGE] Update rollout-operator version to 0.20.0. #9995
 * [CHANGE] Remove the `track_sizes` feature for Memcached pods since it is unused. #10032
 * [FEATURE] Add support for GEM's federation-frontend. See the `federation_frontend` section in the values file. #9673
diff --git a/operations/helm/charts/mimir-distributed/Chart.yaml b/operations/helm/charts/mimir-distributed/Chart.yaml
index fe980ccaca3..6a757f3b3c1 100644
--- a/operations/helm/charts/mimir-distributed/Chart.yaml
+++ b/operations/helm/charts/mimir-distributed/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v2
-version: 5.6.0-weekly.320
-appVersion: r320
+version: 5.6.0-rc.0
+appVersion: 2.15.0-rc.0
 description: "Grafana Mimir"
 home: https://grafana.com/docs/helm-charts/mimir-distributed/latest/
 icon: https://grafana.com/static/img/logos/logo-mimir.svg
diff --git a/operations/helm/charts/mimir-distributed/README.md b/operations/helm/charts/mimir-distributed/README.md
index 3d80986107b..4e4cc8127e6 100644
--- a/operations/helm/charts/mimir-distributed/README.md
+++ b/operations/helm/charts/mimir-distributed/README.md
@@ -4,7 +4,7 @@ Helm chart for deploying [Grafana Mimir](https://grafana.com/docs/mimir/latest/)
 
 For the full documentation, visit [Grafana mimir-distributed Helm chart documentation](https://grafana.com/docs/helm-charts/mimir-distributed/latest/).
 
-> **Note:** The documentation version is derived from the Helm chart version which is 5.6.0-weekly.320.
+> **Note:** The documentation version is derived from the Helm chart version which is 5.6.0-rc.0.
 
 When upgrading from Helm chart version 4.X, please see [Migrate the Helm chart from version 4.x to 5.0](https://grafana.com/docs/helm-charts/mimir-distributed/latest/migration-guides/migrate-helm-chart-4.x-to-5.0/).
 When upgrading from Helm chart version 3.x, please see [Migrate from single zone to zone-aware replication with Helm](https://grafana.com/docs/helm-charts/mimir-distributed/latest/migration-guides/migrate-from-single-zone-with-helm/).
@@ -14,7 +14,7 @@ When upgrading from Helm chart version 2.1, please see [Upgrade the Grafana Mimi
 
 # mimir-distributed
 
-![Version: 5.6.0-weekly.320](https://img.shields.io/badge/Version-5.6.0--weekly.320-informational?style=flat-square) ![AppVersion: r320](https://img.shields.io/badge/AppVersion-r320-informational?style=flat-square)
+![Version: 5.6.0-rc.0](https://img.shields.io/badge/Version-5.6.0--rc.0-informational?style=flat-square) ![AppVersion: 2.15.0-rc.0](https://img.shields.io/badge/AppVersion-2.15.0--rc.0-informational?style=flat-square)
 
 Grafana Mimir
 
diff --git a/operations/helm/charts/mimir-distributed/values.yaml b/operations/helm/charts/mimir-distributed/values.yaml
index 0d3af1346aa..ea14626713a 100644
--- a/operations/helm/charts/mimir-distributed/values.yaml
+++ b/operations/helm/charts/mimir-distributed/values.yaml
@@ -34,7 +34,7 @@ image:
   # -- Grafana Mimir container image repository. Note: for Grafana Enterprise Metrics use the value 'enterprise.image.repository'
   repository: grafana/mimir
   # -- Grafana Mimir container image tag. Note: for Grafana Enterprise Metrics use the value 'enterprise.image.tag'
-  tag: r320-de6d3fb
+  tag: 2.15.0-rc.0
   # -- Container pull policy - shared between Grafana Mimir and Grafana Enterprise Metrics
   pullPolicy: IfNotPresent
   # -- Optionally specify an array of imagePullSecrets - shared between Grafana Mimir and Grafana Enterprise Metrics
@@ -3949,7 +3949,7 @@ enterprise:
     # -- Grafana Enterprise Metrics container image repository. Note: for Grafana Mimir use the value 'image.repository'
     repository: grafana/enterprise-metrics
     # -- Grafana Enterprise Metrics container image tag. Note: for Grafana Mimir use the value 'image.tag'
-    tag: r320-f2d1bf91
+    tag: v2.15.0-rc.0
     # Note: pullPolicy and optional pullSecrets are set in toplevel 'image' section, not here
 
 # In order to use Grafana Enterprise Metrics features, you will need to provide the contents of your Grafana Enterprise Metrics