diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 386a74008..dd07f5550 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -145,6 +145,7 @@ The v1.97.x line will be supported for at least 12 months since [v1.97.0](https:
   or [/api/v1/query_range](https://docs.victoriametrics.com/keyconcepts/#range-query). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5795).
 * BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): fixed floating-point error when parsing time in RFC3339 format. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5801) for details.
 * BUGFIX: [vmalert](https://docs.victoriametrics.com/#vmalert): consistently sort groups by name and filename on `/groups` page in UI. This should prevent non-deterministic sorting for groups with identical names.
+* BUGFIX: [vmalert](https://docs.victoriametrics.com/#vmalert): reduce memory usage for ENT version of vmalert for configurations with high number of groups with enabled multitenancy.
 * BUGFIX: [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html): properly construct the destination label in [label_join](https://docs.victoriametrics.com/metricsql/#label_join) if it is used as source label. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5881) for details.
 
 ## [v1.97.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.2)