diff --git a/values/overrides.yaml b/values/overrides.yaml
index e34afd4..868a129 100644
--- a/values/overrides.yaml
+++ b/values/overrides.yaml
@@ -4260,7 +4260,7 @@ prometheus:
          accessModes: ["ReadWriteOnce"]
          resources:
            requests:
-             storage: 15Gi
+             storage: 5Gi
          selector: {}
 
     ## Using tmpfs volume