diff --git a/jsonnet/mimir-mixin/alerts/alerts.libsonnet b/jsonnet/mimir-mixin/alerts/alerts.libsonnet
index 3c407b4813a..c8e925fb2d5 100644
--- a/jsonnet/mimir-mixin/alerts/alerts.libsonnet
+++ b/jsonnet/mimir-mixin/alerts/alerts.libsonnet
@@ -260,7 +260,7 @@
                 (cortex_ingester_memory_series / ignoring(limit) cortex_ingester_instance_limits{limit="max_series"})
                 and ignoring (limit)
                 (cortex_ingester_instance_limits{limit="max_series"} > 0)
-            ) > 0.7
+            ) > 0.8
           |||,
           'for': '3h',
           labels: {
@@ -279,7 +279,7 @@
                 (cortex_ingester_memory_series / ignoring(limit) cortex_ingester_instance_limits{limit="max_series"})
                 and ignoring (limit)
                 (cortex_ingester_instance_limits{limit="max_series"} > 0)
-            ) > 0.85
+            ) > 0.9
           |||,
           'for': '5m',
           labels: {