diff --git a/prometheus/helm-values.yaml b/prometheus/helm-values.yaml
index 620def5..1ac9b51 100644
--- a/prometheus/helm-values.yaml
+++ b/prometheus/helm-values.yaml
@@ -203,6 +203,7 @@ defaultRules:
   disabled:
     KubeCPUOvercommit: true
     KubeMemoryOvercommit: true
+    PrometheusDuplicateTimestamps: true
   rules:
     alertmanager: true
     etcd: false