diff --git a/howto/prometheus.md b/howto/prometheus.md
index fb943bd92c38ea3da6c84e5091fe24946c6d72d0..f6639e7174c81588d3c6d41983f30f3118849560 100644
--- a/howto/prometheus.md
+++ b/howto/prometheus.md
@@ -913,6 +913,10 @@ That might be a bit aggressive though: the default Prometheus
 30GiB disk usage, which makes for a quite reasonable and easy to
 replicate primary server.
 
+Another option would be to use another backend for prometheus metrics,
+something like [TimescaleDB](https://www.timescale.com), see [this blog post](https://blog.timescale.com/blog/sql-nosql-data-storage-for-prometheus-devops-monitoring-postgresql-timescaledb-time-series-3cde27fd1e07/) for more
+information.
+
 ## Backups
 
 Prometheus servers should be fully configured through Puppet and