diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70e883e38a1..4be8bca1e5b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,8 @@ We use *breaking* word for marking changes that are not backward compatible (rel
 - [#2671](https://github.com/thanos-io/thanos/pull/2671) *breaking* Tools: bucket replicate flag `--resolution` is now in Go duration format.
 - [#2671](https://github.com/thanos-io/thanos/pull/2671) Tools: bucket replicate now replicates by default all blocks.
 - [#2739](https://github.com/thanos-io/thanos/pull/2739) Changed `bucket tool bucket verify` `--id-whitelist` flag to `--id`.
+- [#2748](https://github.com/thanos-io/thanos/pull/2748) Upgrade Prometheus to [@66dfb951c4ca](https://github.com/prometheus/prometheus/commit/66dfb951c4ca2c1dd3f266172a48a925403b13a5) which is after v2.19.0.
+    - PromQL now allow us to executed concurrent selects.
 
 ### Added