diff --git a/jsonnet/mimir-mixin/alerts/alerts.libsonnet b/jsonnet/mimir-mixin/alerts/alerts.libsonnet
index 71655505973..1ae6f40b9ce 100644
--- a/jsonnet/mimir-mixin/alerts/alerts.libsonnet
+++ b/jsonnet/mimir-mixin/alerts/alerts.libsonnet
@@ -134,21 +134,6 @@
             |||,
           },
         },
-        {
-          alert: 'CortexQuerierCapacityFull',
-          expr: |||
-            prometheus_engine_queries_concurrent_max{job=~".+/(cortex|ruler|querier)"} - prometheus_engine_queries{job=~".+/(cortex|ruler|querier)"} == 0
-          |||,
-          'for': '5m',  // We don't want to block for longer.
-          labels: {
-            severity: 'critical',
-          },
-          annotations: {
-            message: |||
-              {{ $labels.job }} is at capacity processing queries.
-            |||,
-          },
-        },
         {
           alert: 'CortexFrontendQueriesStuck',
           expr: |||
diff --git a/jsonnet/mimir-mixin/docs/playbooks.md b/jsonnet/mimir-mixin/docs/playbooks.md
index 00fc8d8bfb5..41b5354b947 100644
--- a/jsonnet/mimir-mixin/docs/playbooks.md
+++ b/jsonnet/mimir-mixin/docs/playbooks.md
@@ -402,10 +402,6 @@ How to **investigate**:
 - Check the latest runtime config update (it's likely to be broken)
 - Check Cortex logs to get more details about what's wrong with the config
 
-### CortexQuerierCapacityFull
-
-_TODO: this playbook has not been written yet._
-
 ### CortexFrontendQueriesStuck
 
 This alert fires if Cortex is running without query-scheduler and queries are piling up in the query-frontend queue.