diff --git a/demo_lxc_build.sh b/demo_lxc_build.sh
index 1dab3d7..f8a10ea 100755
--- a/demo_lxc_build.sh
+++ b/demo_lxc_build.sh
@@ -166,70 +166,70 @@ echo -e "\e[1m>> Modification de Yunohost pour la demo\e[0m" | tee -a "$LOG_BUIL
 echo -e "\e[1m> Installation des applications officielles\e[0m" | tee -a "$LOG_BUILD_LXC"
 # Ampache
 echo -e "\e[36mInstallation de Ampache\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install ampache -a \"domain=$DOMAIN&path=/ampache&admin=$USER_DEMO&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install ampache --force -args \"domain=$DOMAIN&path=/ampache&admin=$USER_DEMO&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 # Baikal
 echo -e "\e[36mInstallation de baikal\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install baikal -a \"domain=$DOMAIN&path=/baikal&password=$PASSWORD_DEMO\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install baikal --force -args \"domain=$DOMAIN&path=/baikal&password=$PASSWORD_DEMO\"" | tee -a "$LOG_BUILD_LXC"
 # Agendav
 echo -e "\e[36mInstallation d'agendav\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install agendav -a \"domain=$DOMAIN&path=/agendav&language=en\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install agendav --force -args \"domain=$DOMAIN&path=/agendav&language=en\"" | tee -a "$LOG_BUILD_LXC"
 # Dokuwiki
 echo -e "\e[36mInstallation de dokuwiki\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install dokuwiki -a \"domain=$DOMAIN&path=/dokuwiki&admin=$USER_DEMO&is_public=1&language=en\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install dokuwiki --force -args \"domain=$DOMAIN&path=/dokuwiki&admin=$USER_DEMO&is_public=1&language=en\"" | tee -a "$LOG_BUILD_LXC"
 # Etherpad
 echo -e "\e[36mInstallation de etherpad\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install etherpad_mypads -a \"domain=$DOMAIN&path=/etherpad&admin=$USER_DEMO&password=administration&language=en&is_public=1&export=none&mypads=1&useldap=0\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install etherpad_mypads --force -args \"domain=$DOMAIN&path=/etherpad&admin=$USER_DEMO&password=administration&language=en&is_public=1&export=none&mypads=1&useldap=0\"" | tee -a "$LOG_BUILD_LXC"
 # Hextris
 echo -e "\e[36mInstallation de hextris\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install hextris -a \"domain=$DOMAIN&path=/hextris&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install hextris --force -args \"domain=$DOMAIN&path=/hextris&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 # Jirafeau
 echo -e "\e[36mInstallation de jirafeau\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install jirafeau -a \"domain=$DOMAIN&path=/jirafeau&admin_user=$USER_DEMO&upload_password=$PASSWORD_DEMO&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install jirafeau --force -args \"domain=$DOMAIN&path=/jirafeau&admin_user=$USER_DEMO&upload_password=$PASSWORD_DEMO&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 # Kanboard
 echo -e "\e[36mInstallation de kanboard\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install kanboard -a \"domain=$DOMAIN&path=/kanboard&admin=$USER_DEMO&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install kanboard --force -args \"domain=$DOMAIN&path=/kanboard&admin=$USER_DEMO&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 # Nextcloud
 echo -e "\e[36mInstallation de nextcloud\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install nextcloud -a \"domain=$DOMAIN&path=/nextcloud&admin=$USER_DEMO&user_home=0&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install nextcloud --force -args \"domain=$DOMAIN&path=/nextcloud&admin=$USER_DEMO&user_home=0&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 # Opensondage
 echo -e "\e[36mInstallation de opensondage\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install opensondage -a \"domain=$DOMAIN&path=/date&admin=$USER_DEMO&language=en&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install opensondage --force -args \"domain=$DOMAIN&path=/date&admin=$USER_DEMO&language=en&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 # Phpmyadmin
 echo -e "\e[36mInstallation de phpmyadmin\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install phpmyadmin -a \"domain=$DOMAIN&path=/phpmyadmin&admin=$USER_DEMO\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install phpmyadmin --force -args \"domain=$DOMAIN&path=/phpmyadmin&admin=$USER_DEMO\"" | tee -a "$LOG_BUILD_LXC"
 # Piwigo
 echo -e "\e[36mInstallation de piwigo\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install piwigo -a \"domain=$DOMAIN&path=/piwigo&admin=$USER_DEMO&is_public=1&language=en\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install piwigo --force -args \"domain=$DOMAIN&path=/piwigo&admin=$USER_DEMO&is_public=1&language=en\"" | tee -a "$LOG_BUILD_LXC"
 # Rainloop
 echo -e "\e[36mInstallation de rainloop\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install rainloop -a \"domain=$DOMAIN&path=/rainloop&is_public=No&password=$PASSWORD_DEMO&ldap=Yes&language=en\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install rainloop --force -args \"domain=$DOMAIN&path=/rainloop&is_public=No&password=$PASSWORD_DEMO&ldap=Yes&language=en\"" | tee -a "$LOG_BUILD_LXC"
 # Roundcube
 echo -e "\e[36mInstallation de roundcube\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install roundcube -a \"domain=$DOMAIN&path=/webmail&with_carddav=0&with_enigma=0&language=en_GB\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install roundcube --force -args \"domain=$DOMAIN&path=/webmail&with_carddav=0&with_enigma=0&language=en_GB\"" | tee -a "$LOG_BUILD_LXC"
 # Searx
 echo -e "\e[36mInstallation de searx\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install searx -a \"domain=$DOMAIN&path=/searx&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install searx --force -args \"domain=$DOMAIN&path=/searx&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 # Shellinabox
 echo -e "\e[36mInstallation de shellinabox\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install shellinabox -a \"domain=$DOMAIN&path=/ssh\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install shellinabox --force -args \"domain=$DOMAIN&path=/ssh\"" | tee -a "$LOG_BUILD_LXC"
 # Strut
 echo -e "\e[36mInstallation de strut\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install strut -a \"domain=$DOMAIN&path=/strut&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install strut --force -args \"domain=$DOMAIN&path=/strut&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 # Transmission
 echo -e "\e[36mInstallation de transmission\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install transmission -a \"domain=$DOMAIN&path=/torrent\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install transmission --force -args \"domain=$DOMAIN&path=/torrent\"" | tee -a "$LOG_BUILD_LXC"
 # Ttrss
 echo -e "\e[36mInstallation de ttrss\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install ttrss -a \"domain=$DOMAIN&path=/ttrss&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install ttrss --force -args \"domain=$DOMAIN&path=/ttrss&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 # Wallabag
 echo -e "\e[36mInstallation de wallabag\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install wallabag2 -a \"domain=$DOMAIN&path=/wallabag&admin=$USER_DEMO\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install wallabag2 --force -args \"domain=$DOMAIN&path=/wallabag&admin=$USER_DEMO\"" | tee -a "$LOG_BUILD_LXC"
 # Wordpress
 echo -e "\e[36mInstallation de wordpress\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install wordpress -a \"domain=$DOMAIN&path=/blog&admin=$USER_DEMO&language=en_US&multisite=0&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install wordpress --force -args \"domain=$DOMAIN&path=/blog&admin=$USER_DEMO&language=en_US&multisite=0&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 # Zerobin
 echo -e "\e[36mInstallation de zerobin\e[0m" | tee -a "$LOG_BUILD_LXC"
-ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install zerobin -a \"domain=$DOMAIN&path=/zerobin&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
+ssh $ARG_SSH $LXC_NAME1 "sudo yunohost app install zerobin --force -args \"domain=$DOMAIN&path=/zerobin&is_public=1\"" | tee -a "$LOG_BUILD_LXC"
 
 # Désactive l'accès à shellinabox
 sudo rm "/var/lib/lxc/$LXC_NAME1/rootfs/etc/nginx/conf.d/$DOMAIN.d/shellinabox.conf"	# Supprime le fichier de conf nginx de shellinabox pour empêcher d'y accéder.