diff --git a/values/overrides.yaml b/values/overrides.yaml
index 98ad2d7..f1967ba 100644
--- a/values/overrides.yaml
+++ b/values/overrides.yaml
@@ -4150,7 +4150,7 @@ prometheus:
 
     ## Maximum size of metrics
     ##
-    retentionSize: "10GB"
+    retentionSize: ""
 
     ## Allow out-of-order/out-of-bounds samples ingested into Prometheus for a specified duration
     ## See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#tsdb
@@ -4251,17 +4251,17 @@ prometheus:
     ## Prometheus StorageSpec for persistent data
     ## ref: https://github.com/prometheus-operator/prometheus-operator/blob/main/Documentation/platform/storage.md
     ##
-    storageSpec: {}
-    ## Using PersistentVolumeClaim
-    ##
-    #  volumeClaimTemplate:
-    #    spec:
-    #      storageClassName: gluster
-    #      accessModes: ["ReadWriteOnce"]
-    #      resources:
-    #        requests:
-    #          storage: 50Gi
-    #    selector: {}
+    storageSpec: 
+    # Using PersistentVolumeClaim
+    #
+     volumeClaimTemplate:
+       spec:
+         storageClassName: longhorn
+         accessModes: ["ReadWriteOnce"]
+         resources:
+           requests:
+             storage: 15Gi
+       selector: {}
 
     ## Using tmpfs volume
     ##