diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9dd810a5..5ca71ff7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ This file is used to list changes made in each version of the ntp cookbook.
 
 ## Unreleased
 
+Since ubuntu 23.10[Mantic Minotaur] the ntp user is ntpsec
+
 ## 5.2.2 - *2024-07-15*
 
 Update ntpd package for Enterprise Linux 9 (ie Oracle, Rocky, Alma)
diff --git a/attributes/default.rb b/attributes/default.rb
index 40a49a3b..098e5934 100644
--- a/attributes/default.rb
+++ b/attributes/default.rb
@@ -47,6 +47,9 @@
 if platform?('debian') && node['platform_version'].to_i >= 12
   default['ntp']['var_owner'] = 'ntpsec'
   default['ntp']['var_group'] = 'ntpsec'
+elsif platform?('ubuntu') && Gem::Version.new(node['platform_version']) >= Gem::Version.new('23.10')
+  default['ntp']['var_owner'] = 'ntpsec'
+  default['ntp']['var_group'] = 'ntpsec'
 else
   default['ntp']['var_owner'] = 'ntp'
   default['ntp']['var_group'] = 'ntp'
diff --git a/files/usr.sbin.ntpd.apparmor b/files/usr.sbin.ntpd.apparmor
index a9eb5a9d..3988c41b 100644
--- a/files/usr.sbin.ntpd.apparmor
+++ b/files/usr.sbin.ntpd.apparmor
@@ -58,6 +58,8 @@
   /etc/ntp.keys r,
   /etc/ntp/** r,
 
+  /etc/ntpsec/** r,
+
   /etc/ntp.drift rwl,
   /etc/ntp.drift.TEMP rwl,
   /etc/ntp/drift* rwl,
diff --git a/spec/unit/attributes_spec.rb b/spec/unit/attributes_spec.rb
index 8e720711..a1e693d1 100644
--- a/spec/unit/attributes_spec.rb
+++ b/spec/unit/attributes_spec.rb
@@ -209,6 +209,18 @@
     end
   end
 
+  describe 'on Ubuntu >= 23.10' do
+    let(:chef_run) { ChefSpec::SoloRunner.new(platform: 'ubuntu', version: '24.04').converge('ntp::default') }
+
+    it 'sets the var_owner to ntpsec' do
+      expect(ntp['var_owner']).to eq('ntpsec')
+    end
+
+    it 'sets the var_group to ntpsec' do
+      expect(ntp['var_group']).to eq('ntpsec')
+    end
+  end
+
   describe 'on the CentOS 7 platform' do
     cached(:chef_run) { ChefSpec::SoloRunner.new(platform: 'centos', version: '7').converge('ntp::default') }