diff --git a/documentation/prometheus-mixin/alerts.libsonnet b/documentation/prometheus-mixin/alerts.libsonnet
index 5a1fb8de0..86def1e80 100644
--- a/documentation/prometheus-mixin/alerts.libsonnet
+++ b/documentation/prometheus-mixin/alerts.libsonnet
@@ -162,7 +162,7 @@
               prometheus_remote_storage_highest_timestamp_in_seconds{%(prometheusSelector)s}
                 - on(job, instance) group_right
               prometheus_remote_storage_queue_highest_sent_timestamp_seconds{%(prometheusSelector)s}
-                > 60
+                > 120
             ||| % $._config,
             'for': '15m',
             labels: {