diff --git a/app-files/core-deployments.yaml b/app-files/core-deployments.yaml
index 8103ef3..ee9693c 100644
--- a/app-files/core-deployments.yaml
+++ b/app-files/core-deployments.yaml
@@ -106,7 +106,7 @@ spec:
   sources:
     - chart: kube-prometheus-stack
       repoURL: https://prometheus-community.github.io/helm-charts
-      targetRevision: 65.0.0
+      targetRevision: 66.1.0
       helm:
         releaseName: prometheus
         valueFiles: