diff --git a/.github/workflows/ci-github-cms.yaml b/.github/workflows/ci-github-cms.yaml
index f2d82b6..84ecd64 100644
--- a/.github/workflows/ci-github-cms.yaml
+++ b/.github/workflows/ci-github-cms.yaml
@@ -51,7 +51,8 @@ jobs:
 
       - name: Deploy Helm chart
         run: |
-          helm dependency update ./helm/supersonic
+          helm repo add grafana https://grafana.github.io/helm-charts
+          helm repo update
           helm dependency build ./helm/supersonic
           helm upgrade --install supersonic ./helm/supersonic \
             --values values/values-cms-ci.yaml -n cms
diff --git a/.github/workflows/ci-local.sh b/.github/workflows/ci-local.sh
index 59ca716..0fa83ce 100644
--- a/.github/workflows/ci-local.sh
+++ b/.github/workflows/ci-local.sh
@@ -41,7 +41,8 @@ kubectl apply -f ci/cvmfs-storageclass.yaml -n cvmfs-csi
 
 # 7. Deploy the Helm chart for supersonic
 echo "Deploying Helm chart for supersonic..."
-helm dependency update ./helm/supersonic
+helm repo add grafana https://grafana.github.io/helm-charts
+helm repo update
 helm dependency build ./helm/supersonic
 helm upgrade --install supersonic ./helm/supersonic --values values/values-cms-ci.yaml -n cms