diff --git a/README.md b/README.md
index 5717102b19e6..3e1c7d6b19f5 100644
--- a/README.md
+++ b/README.md
@@ -95,4 +95,3 @@ Licensed under the GNU General Public License v2.
 
 [mailing_lists]: https://packetfence.org/support/index.html#/community "Community Mailing Lists"
 
-
diff --git a/ci/debian-installer/postinst-debian-installer.sh b/ci/debian-installer/postinst-debian-installer.sh
index 176757eec69f..0f0cf5084e6e 100644
--- a/ci/debian-installer/postinst-debian-installer.sh
+++ b/ci/debian-installer/postinst-debian-installer.sh
@@ -7,7 +7,11 @@ apt install packetfence -y
 sed -i '/^deb cdrom:/s/^/#/' /etc/apt/sources.list
 sed -i 's/#PermitRootLogin.*/PermitRootLogin yes/g' /etc/ssh/sshd_config
 sed -i 's/.*inverse\.ca.*//g' /etc/apt/sources.list
-echo "deb http://inverse.ca/downloads/PacketFence/debian/${PF_VERSION} bookworm bookworm" > /etc/apt/sources.list.d/packetfence.list
+apt-get update
+apt install gnupg sudo curl
+curl -fsSL https://inverse.ca/downloads/GPG_PUBLIC_KEY | gpg --dearmor -o /etc/apt/keyrings/packetfence.gpg
+echo "deb [signed-by=/etc/apt/keyrings/packetfence.gpg] http://inverse.ca/downloads/PacketFence/debian/14.0 bookworm bookworm" > \
+	/etc/apt/sources.list.d/packetfence.list
 echo "SET PASSWORD FOR root@'localhost' = PASSWORD('');" > /tmp/reset-root.sql
 mkdir /run/mysqld
 chown mysql: /run/mysqld/