diff --git a/foreman/altinea_puppet_install.sh b/foreman/altinea_puppet_install.sh
index 35d7357..a72f4c6 100644
--- a/foreman/altinea_puppet_install.sh
+++ b/foreman/altinea_puppet_install.sh
@@ -4,7 +4,12 @@ apt -qqq install lsb-release curl
 if [ `lsb_release -sc` = 'bullseye' ]; then
   echo "Bullseye detected, installing repository directly"
   echo "# Puppet 7 buster Repository
-deb http://apt.puppetlabs.com bullseye puppet7" > /etc/apt/sources.list.d/puppet7.list
+  Types: deb
+  URIs: http://apt.puppetlabs.com
+  Suites: bullseye
+  Components: puppet7
+  Signed-By: /usr/share/keyrings/puppet-keyring.gpg" > /etc/apt/sources.list.d/puppet7.list
+  curl -o /usr/share/keyrings/puppet-keyring.gpg  https://apt.puppet.com/keyring.gpg
 else
   curl -sL -o /var/cache/apt/archives/puppet7-release-`lsb_release -c -s`.deb https://apt.puppet.com/puppet7-release-`lsb_release -c -s`.deb && dpkg -i /var/cache/apt/archives/puppet7-release-`lsb_release -c -s`.deb
 fi