diff --git a/install.sh b/install.sh
index 637f79a..fa1030f 100644
--- a/install.sh
+++ b/install.sh
@@ -29,6 +29,10 @@ cp /etc/fstab /etc/fstab.bck
 awk '!/^#/ && ($3 != "swap") && ($2 != "/media/cdrom0") { if(!match(/noatime/, $4)) $4=$4",noatime" } 1' /etc/fstab > /etc/fstab.tmp
 mv /etc/fstab.tmp /etc/fstab
 
+# Modification pour la branche unstable alias "Sid"
+cp /etc/apt/sources.list /etc/apt/sources.list.bck
+cp sources.list /etc/apt/sources.list
+
 # Update packages list and update system
 apt update
 apt upgrade -y