diff --git a/.github/workflows/publish-workflow.yaml b/.github/workflows/publish-workflow.yaml
index fcf10b87..8a03260a 100644
--- a/.github/workflows/publish-workflow.yaml
+++ b/.github/workflows/publish-workflow.yaml
@@ -9,7 +9,7 @@ jobs:
     steps:
       - uses: actions/checkout@v1
         with:
-          ref: main
+          ref: 5.21.3
       - uses: docker/login-action@v1
         with:
           registry: ghcr.io
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05de637e..a6e6e4a3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Unreleased
+## 5.21.3 - 2023-08-18
 ### Changed
 - Updated puppet module kemra102/cloudwatchlogs
 
diff --git a/Makefile b/Makefile
index e8158bef..b34392fa 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 # packer_aem_version: version of packer-aem to be packaged
-packer_aem_version ?= 5.21.3-pre.0
+packer_aem_version ?= 5.21.3
 # version: version of machine images to be created
 version ?= 1.0.0
 # custom image provisioner version for testing
diff --git a/conf/packer/vars/00_default.json b/conf/packer/vars/00_default.json
index 27b69751..1e936501 100644
--- a/conf/packer/vars/00_default.json
+++ b/conf/packer/vars/00_default.json
@@ -8,5 +8,5 @@
   "aws_vpc_id": "",
   "iam_instance_profile": "overwrite-me",
   "puppet_bin_dir": "/opt/puppetlabs/bin",
-  "packer_aem_version": "5.21.3-pre.0"
+  "packer_aem_version": "5.21.3"
 }
\ No newline at end of file