diff --git a/Proxmox-8.sh b/Proxmox-8.sh
index f446c59..3661e83 100644
--- a/Proxmox-8.sh
+++ b/Proxmox-8.sh
@@ -50,7 +50,7 @@ sed -i '1 {s/^/#/}' /etc/apt/sources.list.d/pve-enterprise.list
 
 echo 'deb https://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware
 
-deb http://deb.debian.org/debian-security/ bookworm-security main contrib non-free non-free-firmware
+deb https://deb.debian.org/debian-security/ bookworm-security main contrib non-free non-free-firmware
 
 deb https://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware