diff --git a/.release-notes/next-release.md b/.release-notes/next-release.md
index cd6f0242e1..058a5f984e 100644
--- a/.release-notes/next-release.md
+++ b/.release-notes/next-release.md
@@ -8,3 +8,6 @@ Fedora 39 has reached its end of life date. We've dropped it as a supported plat
 
 We will maintain best effort to keep Fedora 39 continuing to work for anyone who wants to use it and builds `ponyc` from source.
 
+## Update Pony musl Docker images to Alpine 3.20
+
+We've updated our `ponylang/ponyc:latest-alpine`, `ponylang/ponyc:release-alpine`, and `ponylang/ponyc:x.y.z-alpine` images to be based on Alpine 3.20. Previously, we were using Alpine 3.18 as the base.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 575f330167..f76fce4fcd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ All notable changes to the Pony compiler and standard library will be documented
 ### Changed
 
 - Drop Fedora 39 support ([PR #4558](https://github.com/ponylang/ponyc/pull/4558))
+- Update Pony musl Docker images to Alpine 3.20 ([PR #4562](https://github.com/ponylang/ponyc/pull/4562))
 
 ## [0.58.7] - 2024-11-30