diff --git a/prometheus/values.yaml b/prometheus/values.yaml
index e80609a..591cd1e 100644
--- a/prometheus/values.yaml
+++ b/prometheus/values.yaml
@@ -163,7 +163,7 @@ prometheus:
           maxSamplesPerSend: 1000
           maxShards: 200
           capacity: 2500
-    retentionSize: "45GB"
+    retentionSize: "6h"
     replicas: 2
     storageSpec:
       volumeClaimTemplate:
@@ -172,7 +172,10 @@ prometheus:
          accessModes: ["ReadWriteOnce"]
          resources:
            requests:
-             storage: 50Gi
+             storage: 10Gi
+    serviceMonitorNamespaceSelector:
+      matchLabels:
+        prometheus: yolokube
     ruleNamespaceSelector:
       matchLabels:
         prometheus: yolokube