diff --git a/tasks/main.yml b/tasks/main.yml
index 6e9f69c..86c6a39 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -76,6 +76,15 @@
 
       {% endif %}
 
+      // Enable captcha after 3 authentication failure
+      define('BRUTEFORCE_CAPTCHA', 10);
+
+      // Lock the account after 6 authentication failure
+      define('BRUTEFORCE_LOCKDOWN', 50);
+
+      // Lock account duration in minutes
+      define('BRUTEFORCE_LOCKDOWN_DURATION', 30);
+
     dest: /var/lib/docker/volumes/kanboard_data/_data/config.php
   register: kb_config