diff --git a/contrib/prometheus-exporter/README b/contrib/prometheus-exporter/README
index d33e194..6467ffe 100644
--- a/contrib/prometheus-exporter/README
+++ b/contrib/prometheus-exporter/README
@@ -170,6 +170,10 @@
 | haproxy_backend_http_connect_time_average_seconds   | Avg. connect time for last 1024 successful connections.                  |
 | haproxy_backend_http_response_time_average_seconds  | Avg. response time for last 1024 successful connections.                 |
 | haproxy_backend_http_total_time_average_seconds     | Avg. total time for last 1024 successful connections.                    |
+| haproxy_backend_max_queue_time_seconds              | Maximum observed queue time.                                             |
+| haproxy_backend_max_connect_time_seconds            | Maximum observed connect time.                                           |
+| haproxy_backend_max_response_time_seconds           | Maximum observed response time.                                          |
+| haproxy_backend_max_total_time_seconds              | Maximum observed total time.                                             |
 | haproxy_backend_requests_denied_total               | Total number of denied requests.                                         |
 | haproxy_backend_responses_denied_total              | Total number of denied responses.                                        |
 | haproxy_backend_connection_errors_total             | Total number of connection errors.                                       |
@@ -217,6 +221,10 @@
 | haproxy_server_http_connect_time_average_seconds   | Avg. connect time for last 1024 successful connections.                   |
 | haproxy_server_http_response_time_average_seconds  | Avg. response time for last 1024 successful connections.                  |
 | haproxy_server_http_total_time_average_seconds     | Avg. total time for last 1024 successful connections.                     |
+| haproxy_server_max_queue_time_seconds              | Maximum observed queue time.                                              |
+| haproxy_server_max_connect_time_seconds            | Maximum observed connect time.                                            |
+| haproxy_server_max_response_time_seconds           | Maximum observed response time.                                           |
+| haproxy_server_max_total_time_seconds              | Maximum observed total time.                                              |
 | haproxy_server_connection_attempts_total           | Total number of connection establishment attempts.                        |
 | haproxy_server_connection_reuses_total             | Total number of connection reuses.                                        |
 | haproxy_server_responses_denied_total              | Total number of denied responses.                                         |