diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 0956c478c8..d33e2bc806 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -25,6 +25,7 @@ sort: 15
 * BUGFIX: deduplicate samples more thoroughly if [deduplication](https://docs.victoriametrics.com/#deduplication) is enabled. Previously some duplicate samples may be left on disk for time series with high churn rate. This may result in bigger storage space requirements.
 * BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent.html): follow up to 5 redirects when `follow_redirects: true` is set for a particular scrape config. Previously only a single redirect was performed in this case. It is expected these redirects are performed to the original hostname. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1945).
 * BUGFIX: de-duplicate data exported via [/api/v1/export/csv](https://docs.victoriametrics.com/#how-to-export-csv-data) by default if [deduplication](https://docs.victoriametrics.com/#deduplication) is enabled. The de-duplication can be disabled by passing `reduce_mem_usage=1` query arg to `/api/v1/export/csv`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1837).
+* BUGFIX: [vmalert](https://docs.victoriametrics.com/vmalert.html): properly store [historical data](https://docs.victoriametrics.com/vmalert.html#rules-backfilling) to old Prometheus versions. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1943).
 
 
 ## [v1.70.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.70.0)