diff --git a/runner/buckets.go b/runner/buckets.go
index f92ac34705..36e66cd640 100644
--- a/runner/buckets.go
+++ b/runner/buckets.go
@@ -19,7 +19,7 @@ var (
 	}
 	customBucketsWarehouse = map[string][]float64{
 		"event_delivery_time": {
-			60, 300, 600, 1800, 3600, 5400, 12600, 23400, 45000, 88200, // 1m, 5m, 10m, 30m, 1h, 1.5h, 3.5h, 6.5h, 12.5h, 24.5h
+			60, 300, 900, 1800, 2100, 2700, 3900, 4500, 5400, 9900, 11100, 12600, 21600, 23400, 43200, 45000, 82800, 86400, 88200, // 1m, 5m, 15m, 30m, 35m, 45m, 1h5m, 1h15m, 1h30m, 2h45m, 3h5m, 3h30m, 6h, 6h30m, 12h, 12h30m, 23h, 24h, 24h30m
 		},
 	}