diff --git a/.github/workflows/md-links.yml b/.github/workflows/md-links.yml
index abdae23..fb76314 100644
--- a/.github/workflows/md-links.yml
+++ b/.github/workflows/md-links.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+        uses: actions/checkout@v4
       - name: markdown-link-check
         uses: gaurav-nelson/github-action-markdown-link-check@1.0.15
         with:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5f496a9..dde3987 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,18 +4,28 @@ This file is used to list changes made in each version of the postfix cookbook.
 
 ## Unreleased
 
+- add installation of postfix addon packages for RHEL 8
+
 ## 6.0.25 - *2023-10-03*
 
 Fix markdown
 
 ## 6.0.24 - *2023-09-28*
 
+Standardise files with files in sous-chefs/repo-management
+
 ## 6.0.23 - *2023-09-04*
 
+Standardise files with files in sous-chefs/repo-management
+
 ## 6.0.22 - *2023-08-29*
 
+Standardise files with files in sous-chefs/repo-management
+
 ## 6.0.21 - *2023-05-17*
 
+Standardise files with files in sous-chefs/repo-management
+
 ## 6.0.20 - *2023-04-17*
 
 Fix CI permissions
diff --git a/recipes/maps.rb b/recipes/maps.rb
index a1b612f..35ea9ad 100644
--- a/recipes/maps.rb
+++ b/recipes/maps.rb
@@ -18,6 +18,10 @@ node['postfix']['maps'].each do |type, maps|
     package "postfix-#{type}" if %w(pgsql mysql ldap cdb).include?(type)
   end
 
+  if platform?('redhat') && node['platform_version'].to_i == 8
+    package "postfix-#{type}" if %w(pgsql mysql ldap cdb).include?(type)
+  end
+
   separator = if %w(pgsql mysql ldap memcache sqlite).include?(type)
                 ' = '
               else