diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8ed0e86..bc7164c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -8,7 +8,7 @@ on:
   pull_request:
 
 env:
-  ALPINE_VERSION: 3.20.3
+  ALPINE_VERSION: 3.21.3
   DOCKER_BUILDKIT: 1
 
 jobs:
diff --git a/Makefile b/Makefile
index 0693fe4..96284a1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-ALPINE_VERSION ?= 3.20.3
+ALPINE_VERSION ?= 3.21.3
 REPO_VERSION ?= $(shell echo "$(ALPINE_VERSION)" | sed -E 's/^([0-9]+\.[0-9]+).*/v\1/')
 GIT_TAG ?= $(shell echo "v$(ALPINE_VERSION)" | sed 's/^vedge$$/origin\/master/')
 BUILD_ID ?= $(shell git describe --tags)
diff --git a/README.md b/README.md
index 5c8258d..8213b06 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ Note that this repo includes the [Alpine aports](https://github.com/alpinelinux/
 git submodule update --init
 ```
 
-The examples show the default values for `ALPINE_VERSION=3.20.3 EDITION=std`, `ARCH` defaults to the OS architecture `uname -m`.
+The examples show the default values for `ALPINE_VERSION=3.21.3 EDITION=std`, `ARCH` defaults to the OS architecture `uname -m`.
 The options need to be specified only to select non-default setting.
 
 ### Build the builder
@@ -55,7 +55,7 @@ The options need to be specified only to select non-default setting.
 The ISO builder will be created inside a docker image. You can specify the Alpine version used to create it:
 
 ```
-make mkimage ALPINE_VERSION=3.20.3
+make mkimage ALPINE_VERSION=3.21.3
 ```
 
 ### Build the ISO
@@ -63,17 +63,17 @@ make mkimage ALPINE_VERSION=3.20.3
 This docker image can then be used to create ISO images that will be stored under `./iso`:
 
 ```
-make iso ALPINE_VERSION=3.20.3 EDITION=std
+make iso ALPINE_VERSION=3.21.3 EDITION=std
 ```
 
 ### Run the ISO with qemu
 
 ```
-make run ALPINE_VERSION=3.20.3 EDITION=std
+make run ALPINE_VERSION=3.21.3 EDITION=std
 ```
 
 ### Run the ISO with Lima
 
 ```
-make lima ALPINE_VERSION=3.20.3 EDITION=std
+make lima ALPINE_VERSION=3.21.3 EDITION=std
 ```
diff --git a/src/aports b/src/aports
index 095bac4..899c70c 160000
--- a/src/aports
+++ b/src/aports
@@ -1 +1 @@
-Subproject commit 095bac49b6e2f64f2c05f3cbfde30d86210b17e0
+Subproject commit 899c70c801638ce9aea29a822aaa07a1488efa15