diff --git a/scripts/upgrade b/scripts/upgrade
index 6810d90..3bbbe22 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -113,6 +113,9 @@ exec_console $app "${final_path}" cache:clear
 # Configure Wallabag instance URL
 ynh_mysql_connect_as "$db_name" "$db_pwd" "$db_user"  <<< "UPDATE craue_config_setting SET value = 'https://$domain$path_url' WHERE name = 'wallabag_url'"
 
+# Set-up fail2ban
+ynh_add_fail2ban_config --logpath="/var/www/$app/var/logs/prod.log" --failregex="app.ERROR: Authentication failure" --max_retry=5 # same as install config
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -139,4 +142,4 @@ ynh_app_setting_set "$app" unprotected_uris "/"
 # RELOAD NGINX
 #=================================================
 systemctl restart php5-fpm
-systemctl reload nginx
\ No newline at end of file
+systemctl reload nginx