diff --git a/ct/proxmox-datacenter-manager.sh b/ct/proxmox-datacenter-manager.sh
index 729f8f723..de6a7331b 100644
--- a/ct/proxmox-datacenter-manager.sh
+++ b/ct/proxmox-datacenter-manager.sh
@@ -27,6 +27,16 @@ function update_script() {
         msg_error "No ${APP} Installation Found!"
         exit
     fi
+
+    if grep -q 'Debian GNU/Linux 12' /etc/os-release && [ -f /etc/apt/sources.list.d/proxmox-release-bookworm.list ] && [ -f /etc/apt/sources.list.d/pdm-test.list ]; then
+        msg_info "Updating outdated outdated source formats"
+        echo "deb [signed-by=/usr/share/keyrings/proxmox-archive-keyring.gpg] http://download.proxmox.com/debian/pdm bookworm pdm-test" > /etc/apt/sources.list.d/pdm-test.list
+        curl -fsSL https://enterprise.proxmox.com/debian/proxmox-archive-keyring-trixie.gpg -o /usr/share/keyrings/proxmox-archive-keyring.gpg
+        rm -f /etc/apt/keyrings/proxmox-release-bookworm.gpg /etc/apt/sources.list.d/proxmox-release-bookworm.list
+        $STD apt-get update
+        msg_ok "Updated old sources"
+    fi
+
     msg_info "Updating $APP LXC"
     $STD apt-get update
     $STD apt-get -y upgrade
@@ -41,4 +51,4 @@ description
 msg_ok "Completed Successfully!\n"
 echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
 echo -e "${INFO}${YW} Access it using the following URL:${CL}"
-echo -e "${TAB}${GATEWAY}${BGN}https://${IP}:8443${CL}"
\ No newline at end of file
+echo -e "${TAB}${GATEWAY}${BGN}https://${IP}:8443${CL}"
diff --git a/install/proxmox-datacenter-manager-install.sh b/install/proxmox-datacenter-manager-install.sh
index 5e6b2e3e5..6c62976e9 100644
--- a/install/proxmox-datacenter-manager-install.sh
+++ b/install/proxmox-datacenter-manager-install.sh
@@ -14,12 +14,14 @@ network_check
 update_os
 
 msg_info "Installing Proxmox Datacenter Manager"
-curl -fsSL https://enterprise.proxmox.com/debian/proxmox-release-bookworm.gpg | gpg --dearmor -o /etc/apt/keyrings/proxmox-release-bookworm.gpg
-echo "deb [signed-by=/etc/apt/keyrings/proxmox-release-bookworm.gpg] http://download.proxmox.com/debian/pdm bookworm pdm-test  " >/etc/apt/sources.list.d/proxmox-release-bookworm.list
+curl -fsSL https://enterprise.proxmox.com/debian/proxmox-archive-keyring-trixie.gpg -o /usr/share/keyrings/proxmox-archive-keyring.gpg
+echo "deb [signed-by=/usr/share/keyrings/proxmox-archive-keyring.gpg] http://download.proxmox.com/debian/pdm bookworm pdm-test  " >/etc/apt/sources.list.d/pdm-test.list
 $STD apt-get update
-$STD apt-get install -y \
-  proxmox-datacenter-manager \
-  proxmox-datacenter-manager-ui
+DEBIAN_FRONTEND=noninteractive
+$STD apt-get -o Dpkg::Options::="--force-confdef" \
+        -o Dpkg::Options::="--force-confold" \
+        install -y proxmox-datacenter-manager \
+        proxmox-datacenter-manager-ui
 msg_ok "Installed Proxmox Datacenter Manager"
 
 motd_ssh