diff --git a/CHANGELOG.md b/CHANGELOG.md
index 337e4af..bfa6f62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,18 @@ All user visible changes to this project will be documented in this file. This p
 
 
 
+## [2.11.0-Beta2-r21] · 2025-01-09
+[2.11.0-Beta2-r21]: /../../tree/2.11.0-Beta2-r21
+
+[Diff](/../../compare/2.11.0-Beta2-r20...2.11.0-Beta2-r21)
+
+### Security updated
+
+- [Alpine Linux] 3.21.2: <https://github.com/docker-library/official-images/commit/824cefde693b820f783266fda449588ca583a1b0>
+
+
+
+
 ## [2.11.0-Beta2-r20] · 2025-01-08
 [2.11.0-Beta2-r20]: /../../tree/2.11.0-Beta2-r20
 
diff --git a/Makefile b/Makefile
index 4b0208e..803be45 100644
--- a/Makefile
+++ b/Makefile
@@ -23,8 +23,8 @@ REGISTRIES := $(strip $(subst $(comma), ,\
 	$(shell grep -m1 'registry: \["' .github/workflows/ci.yml \
 	        | cut -d':' -f2 | tr -d '"][')))
 ALL_IMAGES := \
-	debian:2.11.0-Beta2-r20,2.11.0-Beta2,2.11,2,latest \
-	alpine:2.11.0-Beta2-r20-alpine,2.11.0-Beta2-alpine,2.11-alpine,2-alpine,alpine
+	debian:2.11.0-Beta2-r21,2.11.0-Beta2,2.11,2,latest \
+	alpine:2.11.0-Beta2-r21-alpine,2.11.0-Beta2-alpine,2.11-alpine,2-alpine,alpine
 #	<Dockerfile>:<version>,<tag1>,<tag2>,...
 
 # Default is first image from ALL_IMAGES list.
diff --git a/README.md b/README.md
index 1746f0c..4bc4e0b 100644
--- a/README.md
+++ b/README.md
@@ -17,8 +17,8 @@ OpenDKIM Docker image
 
 ## Supported tags and respective `Dockerfile` links
 
-- [`2.11.0-Beta2-r20`, `2.11.0-Beta2`, `2.11`, `2`, `latest`][101]
-- [`2.11.0-Beta2-r20-alpine`, `2.11.0-Beta2-alpine`, `2.11-alpine`, `2-alpine`, `alpine`][102]
+- [`2.11.0-Beta2-r21`, `2.11.0-Beta2`, `2.11`, `2`, `latest`][101]
+- [`2.11.0-Beta2-r21-alpine`, `2.11.0-Beta2-alpine`, `2.11-alpine`, `2-alpine`, `alpine`][102]