diff --git a/CHANGELOG.md b/CHANGELOG.md
index 343cc599..e3634147 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## master / unreleased
 
+* [ENHANCEMENT] Add `nginx.config.upstream_protocol` field to configure the upstream protocol in the nginx configuration #506
+
 ## 2.4.0 / 2024-07-18
 
 * [CHANGE] Removed the default `livenessProbe` for store-gateway and compactor. You can still use a `livenessProbe` but we advise against it #502