diff --git a/prometheus/ingress.yaml b/prometheus/ingress.yaml
index 63b3ca0..22ecb42 100644
--- a/prometheus/ingress.yaml
+++ b/prometheus/ingress.yaml
@@ -6,7 +6,7 @@ metadata:
   namespace: prometheus
   annotations:
     kubernetes.io/ingress.class: "nginx"
-    cert-manager.io/cluster-issuer: letsencrypt-prod
+    cert-manager.io/cluster-issuer: letsencrypt-staging
     acme.cert-manager.io/http01-edit-in-place: "false"
     ingress.kubernetes.io/ssl-redirect: "false"
     nginx.org/basic-auth-secret: prometheus-basic-auth-secret
@@ -35,7 +35,7 @@ metadata:
   namespace: prometheus
   annotations:
     kubernetes.io/ingress.class: "nginx"
-    cert-manager.io/cluster-issuer: letsencrypt-prod
+    cert-manager.io/cluster-issuer: letsencrypt-staging
     acme.cert-manager.io/http01-edit-in-place: "false"
     ingress.kubernetes.io/ssl-redirect: "false"
     nginx.org/basic-auth-secret: prometheus-basic-auth-secret