diff --git a/mon-system/monitoring.yaml b/mon-system/monitoring.yaml
index 0c8ca3b..1dc93de 100644
--- a/mon-system/monitoring.yaml
+++ b/mon-system/monitoring.yaml
@@ -278,7 +278,7 @@ spec:
           args:
             - --config.file=/etc/prometheus/prometheus.yml
             - --storage.tsdb.path=/prometheus
-            - --storage.tsdb.retention.time=15d
+            - --storage.tsdb.retention.time=60d
             - --storage.tsdb.retention.size=19GB
             - --web.enable-lifecycle
             - --web.enable-admin-api