diff --git a/.github/workflows/apps.test.yaml b/.github/workflows/apps.test.yaml
index f2781602a8e..f9b4f071969 100644
--- a/.github/workflows/apps.test.yaml
+++ b/.github/workflows/apps.test.yaml
@@ -116,6 +116,7 @@ jobs:
           helm repo add bitnami https://charts.bitnami.com/bitnami
           helm repo add metallb https://metallb.github.io/metallb
           helm repo add grafana https://grafana.github.io/helm-charts
+          helm repo add prometheus https://prometheus-community.github.io/helm-charts
           helm repo update
 
       - uses: actions/setup-python@v2
diff --git a/.github/workflows/common.test.yaml b/.github/workflows/common.test.yaml
index e7e17905b74..97c3f0e5256 100644
--- a/.github/workflows/common.test.yaml
+++ b/.github/workflows/common.test.yaml
@@ -40,6 +40,7 @@ jobs:
           helm repo add bitnami https://charts.bitnami.com/bitnami
           helm repo add metallb https://metallb.github.io/metallb
           helm repo add grafana https://grafana.github.io/helm-charts
+          helm repo add prometheus https://prometheus-community.github.io/helm-charts
           helm repo update
 
       - name: Run chart-testing (lint)
@@ -79,6 +80,7 @@ jobs:
           helm repo add truecharts https://truecharts.org
           helm repo add bitnami https://charts.bitnami.com/bitnami
           helm repo add metallb https://metallb.github.io/metallb
+          helm repo add prometheus https://prometheus-community.github.io/helm-charts
           helm repo update
 
       - uses: actions/setup-python@v2
diff --git a/tools/build-release.sh b/tools/build-release.sh
index 6ca9590f005..dc42c44fc4f 100755
--- a/tools/build-release.sh
+++ b/tools/build-release.sh
@@ -391,6 +391,7 @@ prep_helm() {
     helm repo add bitnami https://charts.bitnami.com/bitnami
     helm repo add metallb https://metallb.github.io/metallb
     helm repo add grafana https://grafana.github.io/helm-charts
+    helm repo add prometheus https://prometheus-community.github.io/helm-charts
     helm repo update
     fi
     }