diff --git a/CHANGELOG.md b/CHANGELOG.md
index 66d33cf49e..fea5546de6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,10 @@
   and Fluent Bit Helm chart version to [0.48.9](https://github.com/fluent/helm-charts/releases/tag/fluent-bit-0.48.9)
   (PR[#4559](https://github.com/scality/metalk8s/pull/4559))
 
+- Bump the alpine base image used by `metalk8s-alert-logger`
+  and `metalk8s-keepalived` image to `alpine:3.21.3`
+  (PR[#4570](https://github.com/scality/metalk8s/pull/4570))
+
 ## Release 129.0.1 (in development)
 
 ### Enhancements
diff --git a/buildchain/buildchain/versions.py b/buildchain/buildchain/versions.py
index aa232aa4e2..2c43b8a995 100644
--- a/buildchain/buildchain/versions.py
+++ b/buildchain/buildchain/versions.py
@@ -105,8 +105,8 @@ def _version_prefix(version: str, prefix: str = "v") -> str:
     # Remote images
     Image(
         name="alpine",
-        version="3.20.3",
-        digest="sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a",
+        version="3.21.3",
+        digest="sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c",
     ),
     Image(
         name="alertmanager",