diff --git a/manifest.json b/manifest.json
index e0f4385..6905107 100644
--- a/manifest.json
+++ b/manifest.json
@@ -22,7 +22,7 @@
         "email": ""
     },
     "requirements": {
-        "yunohost": ">= 4.2.4"
+        "yunohost": ">= 4.2.8"
     },
     "multi_instance": true,
     "services": [
diff --git a/scripts/install b/scripts/install
index b94b85e..59a4771 100644
--- a/scripts/install
+++ b/scripts/install
@@ -126,10 +126,9 @@ phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 #=================================================
 # SETUP APPLICATION WITH CLI
 #=================================================
-
 ynh_script_progression --message="Configuring the APP..." --weight=1
 
-ynh_add_config --template="$YNH_APP_BASEDIR/conf/install-config.yml.default" --destination="$final_path/install/install-config.yml"
+ynh_add_config --template="../conf/install-config.yml.default" --destination="$final_path/install/install-config.yml"
 
 ynh_exec_as "$app" php${phpversion} "$final_path/install/phpbbcli.php" -q --no-interaction install "$final_path/install/install-config.yml"
 
@@ -138,9 +137,9 @@ mv "$final_path/install" "$final_path/install_old"
 #=================================================
 # ADD A CRON JOB
 #=================================================
+ynh_script_progression --message="Setuping a cron..." --weight=1
 
-cron_path="/etc/cron.d/$app"
-ynh_add_config --template="../conf/phpbb.cron" --destination="$cron_path"
+ynh_add_config --template="../conf/phpbb.cron" --destination="/etc/cron.d/$app"
 chown root: "$cron_path"
 chmod 644 "$cron_path"
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 35bc1b8..1f6d10e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -38,12 +38,6 @@ ynh_script_progression --message="Backing up the app before upgrading (may take
 # Backup the current version of the app
 ynh_backup_before_upgrade
 ynh_clean_setup () {
-	if [ -n "$new_phpbb_dir" ]; then
-		ynh_secure_remove --file="$new_phpbb_dir"
-	fi
-	if [ -n "$old_phpbb_dir" ]; then
-		ynh_secure_remove --file="$old_phpbb_dir"
-	fi
 	# Restore it if the upgrade fails
 	ynh_restore_upgradebackup
 }
@@ -130,18 +124,18 @@ ynh_add_fpm_config
 #=================================================
 ynh_script_progression --message="Upgrading the APP..." --weight=1
 
-ynh_exec_as "$app" php${phpversion} "$final_path/bin/phpbbcli.php" -q --no-interaction db:migrate
+ynh_exec_as "$app" php${phpversion} "$final_path/bin/phpbbcli.php" --no-interaction db:migrate --safe-mode
 
 if [ -e "$final_path/install" ]; then
 	mv "$final_path/install" "$final_path/install_old"
 fi
 
 #=================================================
-# ADD A CRON JOB
+# SETUP A CRON
 #=================================================
+ynh_script_progression --message="Setuping a cron..." --weight=1
 
-cron_path="/etc/cron.d/$app"
-ynh_add_config --template="../conf/phpbb.cron" --destination="$cron_path"
+ynh_add_config --template="../conf/phpbb.cron" --destination="/etc/cron.d/$app"
 chown root: "$cron_path"
 chmod 644 "$cron_path"