diff --git a/metadata.json b/metadata.json
index a9dea7dc..18af8cd6 100644
--- a/metadata.json
+++ b/metadata.json
@@ -74,7 +74,8 @@
     {
       "operatingsystem": "Debian",
       "operatingsystemrelease": [
-        "11"
+        "11",
+        "12"
       ]
     },
     {
diff --git a/spec/acceptance/default_parameters_jira_10_spec.rb b/spec/acceptance/default_parameters_jira_10_spec.rb
index 6a030102..978f9a96 100644
--- a/spec/acceptance/default_parameters_jira_10_spec.rb
+++ b/spec/acceptance/default_parameters_jira_10_spec.rb
@@ -2,50 +2,27 @@
 
 require 'spec_helper_acceptance'
 
-def on_supported_os
-  family = fact('os.family')
-  major = fact('os.release.major')
-  family == 'Debian' and (major >= '22.04' or (major >= '11' and major <= '20'))
-end
-
-prepare = <<-EOS
-  # package {'diffutils':
-  #   ensure  => installed
-  # }
-  # file_line{'enable show_diff':
-  #   path => '/etc/puppetlabs/puppet/puppet.conf',
-  #   line => 'show_diff = true'
-  # }
-EOS
-
 pre = <<-EOS
   if $facts['os']['family']  == 'RedHat' {
     $java_package = 'java-17-openjdk'
     $java_home = '/usr/lib/jvm/jre-17-openjdk'
-    $postgresql_version = '13'
-    $pgsql_package_name = 'postgresql-server'
     $pgsql_data_dir = '/var/lib/pgsql'
+
     $manage_dnf_module = $facts['os']['release']['major'] ? {
-      '8'       => true,
-      default   => false # RHEL-9 has pgsql 13 as a default
+      '8'     => true,
+      default => false, # RHEL-9 has pgsql 13 as a default
     }
+
     $autoremove_command = 'dnf --exclude="systemd*" autoremove -y'
-  }
-  elsif $facts['os']['family']  == 'Debian' {
-    $postgresql_version = $facts['os']['release']['major'] ? {
-      '11'    => '13',
-      default => '14'
-    }
+  } elsif $facts['os']['family'] == 'Debian' {
     $java_package = 'openjdk-17-jre'
     $java_home = '/usr/lib/jvm/java-17-openjdk-amd64'
-    $pgsql_package_name = "postgresql-${postgresql_version}"
-    $pgsql_data_dir = "/var/lib/postgresql/${postgresql_version}/main/"
+    $pgsql_data_dir = "/var/lib/postgresql/*/main/"
     $manage_dnf_module = false
     $autoremove_command = 'apt autoremove -y'
   }
+
   $jira_install_dir = '/opt/jira/'
-  $postgres_service = 'postgresql'
-  $jira_service = 'jira'
 EOS
 
 pp = <<-EOS
@@ -55,11 +32,11 @@ def on_supported_os
   # We don't need the output.
   class { 'postgresql::globals':
     manage_dnf_module => $manage_dnf_module,
-    version           => $postgresql_version,
   }
+
   class { 'postgresql::server':
     service_status => 'systemctl status postgresql > /dev/null',
-    needs_initdb   => true
+    needs_initdb   => true,
   }
 
   postgresql::server::db { 'jira':
@@ -76,9 +53,10 @@ class { 'jira':
     javahome                 => $java_home,
     script_check_java_manage => false,
     connection_settings      => 'tcpKeepAlive=true',
-    require                  => Postgresql::Server::Db['jira']
+    require                  => Postgresql::Server::Db['jira'],
   }
 EOS
+
 pp = pre + pp
 
 pp_upgrade = <<-EOS
@@ -87,50 +65,58 @@ class { 'jira':
     java_package             => $java_package,
     javahome                 => $java_home,
     connection_settings      => 'tcpKeepAlive=true',
-    script_check_java_manage => false
+    script_check_java_manage => false,
   }
 EOS
+
 pp_upgrade = pre + pp_upgrade
 
 pp_remove = <<-EOS
-  package {$java_package:
-    ensure => purged
+  package { $java_package:
+    ensure => purged,
   }
-  exec {'clear JIRA home':
-    command => 'rm -Rf ~jira/*',
+
+  exec { 'clear JIRA home':
+    command  => 'rm -Rf ~jira/*',
     provider => shell,
   }
-  package {$pgsql_package_name:
-     ensure => purged
+
+  class { 'postgresql::server':
+    package_ensure => purged,
   }
+
   if $manage_dnf_module {
-    exec {"dnf module reset postgresql":
-      command => 'dnf module reset -y postgresql',
+    exec { 'dnf module reset postgresql':
+      command  => 'dnf module reset -y postgresql',
       provider => shell,
     }
   }
-  exec {"autoremove cleanup":
-    command => $autoremove_command,
+
+  exec { 'autoremove cleanup':
+    command  => $autoremove_command,
     provider => shell,
   }
-  exec {'cleanup pgsql and JIRA install dir':
-    command => "rm -Rf ${pgsql_data_dir}/* ${$jira_install_dir}/atlassian-jira-software*",
+
+  exec { 'cleanup pgsql and JIRA install dir':
+    command  => "rm -Rf ${pgsql_data_dir}/* ${$jira_install_dir}/atlassian-jira-software*",
     provider => shell,
-    require => Exec['autoremove cleanup'],
+    require  => Exec['autoremove cleanup'],
   }
-  service{$postgres_service:
-    ensure => stopped
+
+  service { 'postgresql':
+    ensure => stopped,
   }
-  service{$jira_service:
-    ensure => stopped
+
+  service { 'jira':
+    ensure => stopped,
   }
 EOS
+
 pp_remove = pre + pp_remove
 
-context 'jira 10 only on RedHat >=8 and Debian-11', if: on_supported_os do
+context 'jira 10' do
   describe 'jira 10 postgresql' do
     it 'installs jira 10 with defaults' do
-      apply_manifest(prepare, catch_failures: true)
       # jira just takes *ages* to start up :-(
       wget_cmd = 'wget -q --tries=24 --retry-connrefused --read-timeout=10 localhost:8080'
       apply_manifest(pp, catch_failures: true)
@@ -179,7 +165,7 @@ class { 'jira':
         apply_manifest(pp_remove, catch_failures: true)
       end
 
-      it { shell('service jira stop', acceptable_exit_codes: [0, 1]) }
+      it { shell('systemctl stop jira', acceptable_exit_codes: [0, 1]) }
       it { shell('pkill -9 -f postgres', acceptable_exit_codes: [0, 1]) }
       it { shell('pkill -9 -f jira', acceptable_exit_codes: [0, 1]) }
     end