diff --git a/bootstrap/argo-cd/kustomization.yaml b/bootstrap/argo-cd/kustomization.yaml
index 60a5ba3..46621dd 100644
--- a/bootstrap/argo-cd/kustomization.yaml
+++ b/bootstrap/argo-cd/kustomization.yaml
@@ -57,6 +57,8 @@ replicas:
     count: 3
 
 resources:
+  # Prometheus operator CRDs
+  - https://raw.githubusercontent.com/prometheus-operator/prometheus-operator/v0.75.2/bundle.yaml
   - https://raw.githubusercontent.com/argoproj/argo-cd/v2.9.6/manifests/ha/install.yaml
   - manifests/ingress.yaml
   - manifests/service-monitors.yaml