diff --git a/k8s/infra/monitoring/prometheus-values.yaml b/k8s/infra/monitoring/prometheus-values.yaml
index 0796c63..71efaae 100644
--- a/k8s/infra/monitoring/prometheus-values.yaml
+++ b/k8s/infra/monitoring/prometheus-values.yaml
@@ -78,7 +78,7 @@ prometheus:
           accessModes: ["ReadWriteOnce"]
           resources:
             requests:
-              storage: 100Gi
+              storage: 25Gi
 
     resources:
       requests: