diff --git a/roles/kubernetes/apps/defaults/main.yml b/roles/kubernetes/apps/defaults/main.yml
index 62893e6..1464ca4 100644
--- a/roles/kubernetes/apps/defaults/main.yml
+++ b/roles/kubernetes/apps/defaults/main.yml
@@ -24,6 +24,9 @@ k8s_prometheus_helm__release_values:
         - secretName: "{{ stage }}-kube-prometheus-cert"
           hosts:
             - "{{ stage }}-kube-prometheus.{{ domain }}"
+    prometheusSpec:
+      # TODO Using PersistentVolumeClaim
+      storageSpec: {}
     deploymentStrategy:
       type: Recreate
   alertmanager: