diff --git a/scripts/_common.sh b/scripts/_common.sh
index 60ae74d..9d4db91 100755
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -6,7 +6,7 @@
 
 YNH_PHP_VERSION="8.0"
 
-extra_php_dependencies="php${YNH_PHP_VERSION}-mysql php${YNH_PHP_VERSION}-gd php${YNH_PHP_VERSION}-intl php${YNH_PHP_VERSION}-curl php${YNH_PHP_VERSION}-mbstring php${YNH_PHP_VERSION}-json php${YNH_PHP_VERSION}-xml php${YNH_PHP_VERSION}-mysqlnd"
+pkg_dependencies="php${YNH_PHP_VERSION}-mysql php${YNH_PHP_VERSION}-gd php${YNH_PHP_VERSION}-intl php${YNH_PHP_VERSION}-curl php${YNH_PHP_VERSION}-mbstring php${YNH_PHP_VERSION}-json php${YNH_PHP_VERSION}-xml php${YNH_PHP_VERSION}-mysqlnd"
 
 #=================================================
 # PERSONAL HELPERS
diff --git a/scripts/install b/scripts/install
index ac247e1..4601b70 100755
--- a/scripts/install
+++ b/scripts/install
@@ -26,6 +26,7 @@ is_public=$YNH_APP_ARG_IS_PUBLIC
 admin=$YNH_APP_ARG_ADMIN
 password=$YNH_APP_ARG_PASSWORD
 email=$(ynh_user_get_info --username=$admin --key=mail)
+phpversion=$YNH_PHP_VERSION
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -48,6 +49,14 @@ ynh_script_progression --message="Storing installation settings..." --weight=1
 ynh_app_setting_set --app=$app --key=domain --value=$domain
 ynh_app_setting_set --app=$app --key=path --value=$path_url
 ynh_app_setting_set --app=$app --key=admin --value=$admin
+ynh_app_setting_set --app=$app --key=phpversion --value=$phpversion
+
+#=================================================
+# INSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Installing dependencies..." --weight=1
+
+ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
 # CREATE DEDICATED USER
@@ -94,7 +103,7 @@ ynh_add_nginx_config
 ynh_script_progression --message="Configuring PHP-FPM..." --weight=1
 
 # Create a dedicated PHP-FPM config
-ynh_add_fpm_config --package="$extra_php_dependencies"
+ynh_add_fpm_config
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 7b22d1d..d2d7fa7 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -30,6 +30,14 @@ ynh_script_progression --message="Removing the MySQL database..." --weight=1
 # Remove a database if it exists, along with the associated user
 ynh_mysql_remove_db --db_user=$db_user --db_name=$db_name
 
+#=================================================
+# REMOVE DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Removing dependencies..." --weight=1
+
+# Remove metapackage and its dependencies
+ynh_remove_app_dependencies
+
 #=================================================
 # REMOVE THE REDIS DATABASE
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index bd7ca7b..139b58a 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -69,11 +69,17 @@ chown -R $app:www-data "$final_path"
 #=================================================
 # RESTORE THE PHP-FPM CONFIGURATION
 #=================================================
+ynh_script_progression --message="Restoring the PHP-FPM configuration..." --weight=1
 
-#ynh_restore_file --origin_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
+ynh_restore_file --origin_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
 
-# Create a dedicated PHP-FPM config
-ynh_add_fpm_config --package="$extra_php_dependencies"
+#=================================================
+# REINSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Reinstalling dependencies..." --weight=1
+
+# Define and install dependencies
+ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
 # RESTORE THE MYSQL DATABASE
diff --git a/scripts/upgrade b/scripts/upgrade
index c9350fb..598f6c3 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -30,6 +30,20 @@ phpversion=$YNH_PHP_VERSION
 
 upgrade_type=$(ynh_check_app_version_changed)
 
+#=================================================
+# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+#=================================================
+ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=1
+
+# Backup the current version of the app
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+	# Restore it if the upgrade fails
+	ynh_restore_upgradebackup
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
@@ -54,20 +68,6 @@ if ynh_legacy_permissions_exists; then
 	ynh_app_setting_delete --app=$app --key=is_public
 fi
 
-#=================================================
-# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
-#=================================================
-ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=1
-
-# Backup the current version of the app
-ynh_backup_before_upgrade
-ynh_clean_setup () {
-	# Restore it if the upgrade fails
-	ynh_restore_upgradebackup
-}
-# Exit if an error occurs during the execution of the script
-ynh_abort_if_errors
-
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
@@ -102,13 +102,20 @@ ynh_script_progression --message="Upgrading NGINX web server configuration..." -
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
+#=================================================
+# UPGRADE DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Upgrading dependencies..." --weight=1
+
+ynh_install_app_dependencies $pkg_dependencies
+
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
 ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=2
 
 # Create a dedicated PHP-FPM config
-ynh_add_fpm_config --package="$extra_php_dependencies"
+ynh_add_fpm_config
 
 #=================================================
 # CONFIGURE CASTOPOD