diff --git a/k8s/core/prometheus/persistentVolume.yaml b/k8s/core/prometheus/persistentVolume.yaml
index 5318156..9e133ce 100644
--- a/k8s/core/prometheus/persistentVolume.yaml
+++ b/k8s/core/prometheus/persistentVolume.yaml
@@ -5,7 +5,7 @@ metadata:
   name: prometheus-pv
 spec:
   capacity:
-    storage: 200Gi
+    storage: 400Gi
   accessModes:
     - ReadWriteOnce
   hostPath:
diff --git a/k8s/core/prometheus/prom-values.yaml b/k8s/core/prometheus/prom-values.yaml
index 0cf6842..e7185f6 100644
--- a/k8s/core/prometheus/prom-values.yaml
+++ b/k8s/core/prometheus/prom-values.yaml
@@ -30,5 +30,5 @@ prometheus:
           accessModes: ["ReadWriteOnce"]
           resources:
             requests:
-              storage: 200Gi
+              storage: 400Gi