diff --git a/scripts/restore b/scripts/restore
index 20e5730..fa876bf 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -56,6 +56,13 @@ ynh_restore_file "/etc/nginx/conf.d/$domain.d/$app.conf"
 
 ynh_restore_file "$final_path"
 
+#=================================================
+# INSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Installing dependencies..." --weight=10
+
+ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
+
 #=================================================
 # RESTORE THE APP DATA
 #=================================================
@@ -65,10 +72,11 @@ ynh_restore_file "$data_path"
 #=================================================
 # RESTORE THE MYSQL DATABASE
 #=================================================
+ynh_script_progression --message="Restoring the PostgreSQL database..." --weight=6
 
-db_pwd=$(ynh_app_setting_get $app mysqlpwd)
-ynh_mysql_setup_db "$db_user" "$db_name" "$db_pwd"
-ynh_mysql_connect_as "$db_user" "$db_pwd" "$db_name" < ./db.sql
+ynh_psql_test_if_first_run
+ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
+ynh_psql_execute_file_as_root --file="./db.sql" --database=$db_name
 
 #=================================================
 # RECREATE THE DEDICATED USER
diff --git a/scripts/upgrade b/scripts/upgrade
index 84ed45c..acaab5d 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -116,6 +116,13 @@ ynh_script_progression --message="Upgrading NGINX web server configuration..." -
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
+#=================================================
+# INSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Installing dependencies..." --weight=10
+
+ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
+
 #=================================================
 # SETUP SYSTEMD
 #=================================================
@@ -144,9 +151,9 @@ fi
 # RESTORE FILE PERMISSIONS
 #=================================================
 
-chown -R "$mattermost_user:www-data" "$final_path"
-chown -R "$mattermost_user:www-data" "$data_path"
-chown -R "$mattermost_user:adm"      "$logs_path"
+chown -R "$app:www-data" "$final_path"
+chown -R "$app:www-data" "$data_path"
+chown -R "$app:adm"      "$logs_path"
 
 #=================================================
 # INTEGRATE SERVICE IN YUNOHOST