diff --git a/helm/values.yaml b/helm/values.yaml
index f56cd9d..5ea08ea 100644
--- a/helm/values.yaml
+++ b/helm/values.yaml
@@ -60,3 +60,6 @@ kube-prometheus-stack:
     enabled: false
   grafana:
     defaultDashboardsEnabled: true
+  prometheus:
+    prometheusSpec:
+      maximumStartupDurationSeconds: 120