diff --git a/clusters/ipv6/monitoring/prometheus/prometheus-release.yml b/clusters/ipv6/monitoring/prometheus/prometheus-release.yml
index ea065a5..3c07509 100644
--- a/clusters/ipv6/monitoring/prometheus/prometheus-release.yml
+++ b/clusters/ipv6/monitoring/prometheus/prometheus-release.yml
@@ -20,6 +20,5 @@ spec:
       persistentVolume:
         enabled: true
         existingClaim: prometheus-longhorn
-    prometheus:
-      prometheusSpec:
-        retention: 1d
+      retention: "2d"
+      retentionSize: "4GB"