diff --git a/pkg/middleware/request_metrics.go b/pkg/middleware/request_metrics.go
index 8c8d193e12a..4624f8f6ab2 100644
--- a/pkg/middleware/request_metrics.go
+++ b/pkg/middleware/request_metrics.go
@@ -20,7 +20,7 @@ var (
 
 	// DefBuckets are histogram buckets for the response time (in seconds)
 	// of a network service, including one that is responding very slowly.
-	defBuckets = []float64{.005, .01, .025, .05, .1, .25, .5, 1, 2.5, 5}
+	defBuckets = []float64{.005, .01, .025, .05, .1, .25, .5, 1, 2.5, 5, 10, 25}
 )
 
 func init() {