diff --git a/kustomize/bases/prometheus/prometheus.yaml b/kustomize/bases/prometheus/prometheus.yaml
index 4678159..54bb5fe 100644
--- a/kustomize/bases/prometheus/prometheus.yaml
+++ b/kustomize/bases/prometheus/prometheus.yaml
@@ -5,7 +5,7 @@ metadata:
 spec:
   serviceAccountName: prometheus
   retention: 28d
-  retentionSize: 4.5GB
+  retentionSize: 9GB
   ruleSelector:
     matchLabels:
       monitor: prometheus
@@ -36,4 +36,4 @@ spec:
         accessModes: ["ReadWriteOnce"]
         resources:
           requests:
-            storage: 5Gi
\ No newline at end of file
+            storage: 10Gi
\ No newline at end of file