diff --git a/manifests/globals.pp b/manifests/globals.pp
index 7affa455..b254ae88 100644
--- a/manifests/globals.pp
+++ b/manifests/globals.pp
@@ -35,6 +35,7 @@
       'Debian' => $facts['os']['release']['major'] ? {
         '10'    => '7.3',
         '11'    => '7.4',
+        '12'    => '8.2',
         default => fail("Unsupported Debian release: ${fact('os.release.major')}"),
       },
       'Ubuntu' => $facts['os']['release']['major'] ? {
diff --git a/manifests/repo/debian.pp b/manifests/repo/debian.pp
index 2ba8b1ae..53e4ef4b 100644
--- a/manifests/repo/debian.pp
+++ b/manifests/repo/debian.pp
@@ -38,7 +38,7 @@
   }
   include 'apt'
 
-  if ($dotdeb and $facts['os']['release']['major'] in ['6', '7', '8']) {
+  if ($dotdeb and versioncmp($facts['os']['release']['major'], '9') < 1) {
     apt::source { 'source_php_dotdeb':
       location => $location,
       repos    => $repos,
@@ -50,7 +50,7 @@
     }
   }
 
-  if ($sury and $facts['os']['release']['major'] in ['9', '10', '11']) {
+  if ($sury and versioncmp($facts['os']['release']['major'], '9') >= 0) {
     apt::source { 'source_php_sury':
       location => 'https://packages.sury.org/php/',
       repos    => 'main',
diff --git a/metadata.json b/metadata.json
index 4a2d3018..dc76cad4 100644
--- a/metadata.json
+++ b/metadata.json
@@ -49,7 +49,8 @@
       "operatingsystem": "Debian",
       "operatingsystemrelease": [
         "10",
-        "11"
+        "11",
+        "12"
       ]
     },
     {
diff --git a/spec/classes/php_repo_debian_spec.rb b/spec/classes/php_repo_debian_spec.rb
index e778ff16..b74e86cb 100644
--- a/spec/classes/php_repo_debian_spec.rb
+++ b/spec/classes/php_repo_debian_spec.rb
@@ -23,11 +23,10 @@
         if facts[:os]['name'] == 'Debian'
           it { is_expected.to compile.with_all_deps }
 
-          case facts[:os]['release']['major']
-          when '6', '7', '8'
+          if facts[:os]['release']['major'].to_i < 9
             it { is_expected.to contain_apt__source('source_php_dotdeb') }
             it { is_expected.not_to contain_apt__source('source_php_sury') }
-          when '9', '10', '11'
+          elsif facts[:os]['release']['major'].to_i >= 9
             it { is_expected.not_to contain_apt__source('source_php_dotdeb') }
             it { is_expected.to contain_apt__source('source_php_sury') }
           end