diff --git a/scripts/_common.sh b/scripts/_common.sh
index 21234d0..2b85245 100755
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -517,7 +517,7 @@ EOF
   ynh_store_file_checksum "$finalfail2banjailconf"
   ynh_store_file_checksum "$finalfail2banfilterconf"
 
-  systemctl reload fail2ban
+  systemctl restart fail2ban
   local fail2ban_error="$(journalctl -u fail2ban | tail -n50 | grep "WARNING.*$app.*")"
   if [ -n "$fail2ban_error" ]
   then
@@ -532,7 +532,7 @@ EOF
 ynh_remove_fail2ban_config () {
   ynh_secure_remove "/etc/fail2ban/jail.d/$app.conf"
   ynh_secure_remove "/etc/fail2ban/filter.d/$app.conf"
-  systemctl reload fail2ban
+  systemctl restart fail2ban
 }
 
 #=================================================
diff --git a/scripts/install b/scripts/install
index 2421fa7..df0291f 100644
--- a/scripts/install
+++ b/scripts/install
@@ -176,6 +176,7 @@ ynh_exec_warn_less make install )
 ynh_secure_remove "$FTL_temp_path"
 
 cp "../conf/pihole-FTL.conf" "$pihole_storage"
+ynh_store_file_checksum "$pihole_storage/pihole-FTL.conf"	# Enregistre la somme de contrôle du fichier de config
 
 cp -a $pihole_local_repo/advanced/pihole-FTL.service /etc/init.d/pihole-FTL
 chmod +x /etc/init.d/pihole-FTL
diff --git a/scripts/upgrade b/scripts/upgrade
index 8a47430..7fdfe88 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -152,6 +152,10 @@ then
 	ynh_secure_remove "$FTL_temp_path"
 fi
 
+ynh_backup_if_checksum_is_different "$pihole_storage/pihole-FTL.conf"	# Créé un backup du fichier de config si il a été modifié.
+cp "../conf/pihole-FTL.conf" "$pihole_storage"
+ynh_store_file_checksum "$pihole_storage/pihole-FTL.conf"	# Enregistre la somme de contrôle du fichier de config
+
 cp -a $pihole_local_repo/advanced/pihole-FTL.service /etc/init.d/pihole-FTL
 chmod +x /etc/init.d/pihole-FTL
 ynh_exec_warn_less systemctl enable pihole-FTL