diff --git a/manifests/params.pp b/manifests/params.pp
index ca1b8c57ae..cdd6e07ed7 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -392,7 +392,7 @@
         'wsgi'                  => 'libapache2-mod-wsgi',
         'xsendfile'             => 'libapache2-mod-xsendfile',
       }
-    } else {
+    } elsif ($::operatingsystem == 'Ubuntu') or ($::operatingsystem == 'Debian' and versioncmp($::operatingsystemrelease, '11') < 0) {
       $php_version = $facts['operatingsystemmajrelease'] ? {
         '9'     => '7.0', # Debian Stretch
         '16.04' => '7.0', # Ubuntu Xenial
@@ -427,6 +427,37 @@
         'wsgi'                  => 'libapache2-mod-wsgi',
         'xsendfile'             => 'libapache2-mod-xsendfile',
       }
+    } else {
+      $php_version = $facts['operatingsystemmajrelease'] ? {
+        default => '7.4', # Debian Bullseye
+      }
+      $mod_packages = {
+        'apreq2'                => 'libapache2-mod-apreq2',
+        'auth_cas'              => 'libapache2-mod-auth-cas',
+        'auth_kerb'             => 'libapache2-mod-auth-kerb',
+        'auth_openidc'          => 'libapache2-mod-auth-openidc',
+        'auth_gssapi'           => 'libapache2-mod-auth-gssapi',
+        'auth_mellon'           => 'libapache2-mod-auth-mellon',
+        'authnz_pam'            => 'libapache2-mod-authnz-pam',
+        'dav_svn'               => 'libapache2-mod-svn',
+        'fastcgi'               => 'libapache2-mod-fastcgi',
+        'fcgid'                 => 'libapache2-mod-fcgid',
+        'geoip'                 => 'libapache2-mod-geoip',
+        'intercept_form_submit' => 'libapache2-mod-intercept-form-submit',
+        'jk'                    => 'libapache2-mod-jk',
+        'lookup_identity'       => 'libapache2-mod-lookup-identity',
+        'nss'                   => 'libapache2-mod-nss',
+        'pagespeed'             => 'mod-pagespeed-stable',
+        'passenger'             => 'libapache2-mod-passenger',
+        'perl'                  => 'libapache2-mod-perl2',
+        'phpXXX'                => 'libapache2-mod-phpXXX',
+        'python'                => 'libapache2-mod-python',
+        'rpaf'                  => 'libapache2-mod-rpaf',
+        'security'              => 'libapache2-mod-security2',
+        'shib2'                 => 'libapache2-mod-shib',
+        'wsgi'                  => 'libapache2-mod-wsgi-py3',
+        'xsendfile'             => 'libapache2-mod-xsendfile',
+      }
     }
     $error_log           = 'error.log'
     $scriptalias         = '/usr/lib/cgi-bin'
diff --git a/metadata.json b/metadata.json
index fea7e21868..413e228e4e 100644
--- a/metadata.json
+++ b/metadata.json
@@ -53,7 +53,8 @@
       "operatingsystemrelease": [
         "8",
         "9",
-        "10"
+        "10",
+        "11"
       ]
     },
     {
diff --git a/spec/acceptance/mod_php_spec.rb b/spec/acceptance/mod_php_spec.rb
index 2917445416..7bc3749c13 100644
--- a/spec/acceptance/mod_php_spec.rb
+++ b/spec/acceptance/mod_php_spec.rb
@@ -33,6 +33,10 @@ class { 'apache::mod::php': }
       describe file("#{apache_hash['mod_dir']}/php7.3.conf") do
         it { is_expected.to contain 'DirectoryIndex index.php' }
       end
+    elsif os[:family] == 'debian' && os[:release] =~ %r{^11\.}
+      describe file("#{apache_hash['mod_dir']}/php7.4.conf") do
+        it { is_expected.to contain 'DirectoryIndex index.php' }
+      end
     elsif os[:family] == 'ubuntu' && os[:release] == '18.04'
       describe file("#{apache_hash['mod_dir']}/php7.2.conf") do
         it { is_expected.to contain 'DirectoryIndex index.php' }
diff --git a/spec/spec_helper_acceptance_local.rb b/spec/spec_helper_acceptance_local.rb
index 6f64652915..2f4405c1f7 100644
--- a/spec/spec_helper_acceptance_local.rb
+++ b/spec/spec_helper_acceptance_local.rb
@@ -72,6 +72,9 @@ class { 'epel': }
     }
     PUPPETCODE
     LitmusHelper.instance.apply_manifest(pp)
+
+    # Ensure ipv6 is enabled on our Debian 11 Docker boxes
+    LitmusHelper.instance.run_shell('sysctl -w net.ipv6.conf.all.disable_ipv6=0') if %r{debian}.match?(os[:family]) && os[:release].to_f == 11
   end
 
   c.after :suite do