diff --git a/metrics/grafana/tidb.json b/metrics/grafana/tidb.json
index dd8cd7bb0e965..1481c4c26c554 100644
--- a/metrics/grafana/tidb.json
+++ b/metrics/grafana/tidb.json
@@ -11296,25 +11296,25 @@
           "steppedLine": false,
           "targets": [
             {
-              "expr": "histogram_quantile(0.999, sum(rate(pd_client_request_handle_requests_duration_seconds_bucket{k8s_cluster=\"$k8s_cluster\", tidb_cluster=\"$tidb_cluster\", instance=~\"$instance\", type=\"tso\"}[1m])) by (le))",
+              "expr": "histogram_quantile(0.9999, sum(rate(pd_client_request_handle_requests_duration_seconds_bucket{k8s_cluster=\"$k8s_cluster\", tidb_cluster=\"$tidb_cluster\", instance=~\"$instance\", type=\"tso\"}[1m])) by (le))",
               "format": "time_series",
               "intervalFactor": 2,
-              "legendFormat": "999",
+              "legendFormat": "9999",
               "refId": "A",
               "step": 10
             },
             {
-              "expr": "histogram_quantile(0.99, sum(rate(pd_client_request_handle_requests_duration_seconds_bucket{k8s_cluster=\"$k8s_cluster\", tidb_cluster=\"$tidb_cluster\", instance=~\"$instance\", type=\"tso\"}[1m])) by (le))",
+              "expr": "histogram_quantile(0.999, sum(rate(pd_client_request_handle_requests_duration_seconds_bucket{k8s_cluster=\"$k8s_cluster\", tidb_cluster=\"$tidb_cluster\", instance=~\"$instance\", type=\"tso\"}[1m])) by (le))",
               "format": "time_series",
               "intervalFactor": 2,
-              "legendFormat": "99",
+              "legendFormat": "999",
               "refId": "B"
             },
             {
-              "expr": "histogram_quantile(0.90, sum(rate(pd_client_request_handle_requests_duration_seconds_bucket{k8s_cluster=\"$k8s_cluster\", tidb_cluster=\"$tidb_cluster\", instance=~\"$instance\", type=\"tso\"}[1m])) by (le))",
+              "expr": "histogram_quantile(0.99, sum(rate(pd_client_request_handle_requests_duration_seconds_bucket{k8s_cluster=\"$k8s_cluster\", tidb_cluster=\"$tidb_cluster\", instance=~\"$instance\", type=\"tso\"}[1m])) by (le))",
               "format": "time_series",
               "intervalFactor": 2,
-              "legendFormat": "90",
+              "legendFormat": "99",
               "refId": "C"
             }
           ],