diff --git a/CHANGELOG.md b/CHANGELOG.md
index dd7884f5af7e..623bb0a55f7e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,14 @@
 
 ## v0.49.0
 
+### ⚠️ Warning  ⚠️
+
+This release contains an issue in
+[Prometheus receiver](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/prometheusreceiver)
+causing 30% memory consumption increase when there is a lot of target churn. The issue is currently being 
+investigated and will be fixed in one of the new releases. More details:
+https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/9278.
+
 ### 🛑 Breaking changes 🛑
 
 - `filelogreceiver`, `journaldreceiver`, `syslogreceiver`, `tcplogreceiver`, `udplogreceiver`:
diff --git a/receiver/prometheusreceiver/README.md b/receiver/prometheusreceiver/README.md
index 83e2053345b4..342f696cd85a 100644
--- a/receiver/prometheusreceiver/README.md
+++ b/receiver/prometheusreceiver/README.md
@@ -5,6 +5,12 @@ Receives metric data in [Prometheus](https://prometheus.io/) format. See the
 
 Supported pipeline types: metrics
 
+## ❗️ Important note
+
+Starting from version 0.49.0, the receiver consumes 30% more memory when there is a lot of target churn.
+The issue is currently being investigated and will be fixed in one of the new releases. More details:
+https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/9278.
+
 ## ⚠️ Warning
 
 Note: This component is currently work in progress. It has several limitations