diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6895ec..74252e8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 * [CHANGE] Remove chunks support for dashboards
 * [CHANGE] Target 3M memory series per ingester instead of 1.5M
 * [CHANGE] Update jsonnet-libs to Fri Jul 19 12:51:49 2024 #57
+* [CHANGE] Increase CortexProvisioningTooManyWrites alert threshold to 160e3
 * [ENHANCEMENT] Configure `-ingester.client.grpc-compression` to be `snappy-block`
 * [ENHANCEMENT] Support Grafana 11 in Cortex Service Scaling Dashboard
 
diff --git a/cortex-mixin/alerts/alerts.libsonnet b/cortex-mixin/alerts/alerts.libsonnet
index 7145d02..ec44565 100644
--- a/cortex-mixin/alerts/alerts.libsonnet
+++ b/cortex-mixin/alerts/alerts.libsonnet
@@ -407,9 +407,9 @@
         },
         {
           alert: 'CortexProvisioningTooManyWrites',
-          // 80k writes / s per ingester max.
+          // 160k writes / s per ingester max.
           expr: |||
-            avg by (%s) (rate(cortex_ingester_ingested_samples_total[1m])) > 80e3
+            avg by (%s) (rate(cortex_ingester_ingested_samples_total[1m])) > 160e3
           ||| % $._config.alert_aggregation_labels,
           'for': '15m',
           labels: {