diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 0687e2e2..fe5992e0 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -50,6 +50,7 @@ jobs:
       - name: Package Chart
         run: |
           helm repo add bitnami https://charts.bitnami.com/bitnami
+          helm repo add grafana https://grafana.github.io/helm-charts
           helm dependency build
           helm package . -d docs
           helm repo index ./docs/ --url https://cortexproject.github.io/cortex-helm-chart
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d8e98e4f..3e3d727e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 * [FEATURE] Add remote-write OTLP endpoint in nginx #667
 * [FEATURE] Add support for zone-aware replication ([Migration Instructions](https://cortexproject.github.io/cortex-helm-chart/guides/migrate_to_zone_aware_replication.html)) #668
+* [BUGFIX] CI: Add grafana helm repository #671
 * [DEPENDENCY] update kiwigrid/k8s-sidecar docker tag to v2.11.2 #663
 
 ## 3.3.8 / 2026-08-17