diff --git a/index.md b/index.md
index f549779..da4a26a 100644
--- a/index.md
+++ b/index.md
@@ -13,6 +13,7 @@ Setup [Drone CI autoscaler](https://autoscale.drone.io/).
   * [droneci_autoscaler_agent_image](#droneci_autoscaler_agent_image)
   * [droneci_autoscaler_agent_os](#droneci_autoscaler_agent_os)
   * [droneci_autoscaler_agent_package_upgrade](#droneci_autoscaler_agent_package_upgrade)
+  * [droneci_autoscaler_agent_packages](#droneci_autoscaler_agent_packages)
   * [droneci_autoscaler_agent_token](#droneci_autoscaler_agent_token)
   * [droneci_autoscaler_agent_version](#droneci_autoscaler_agent_version)
   * [droneci_autoscaler_agent_volumes](#droneci_autoscaler_agent_volumes)
@@ -93,6 +94,16 @@ droneci_autoscaler_agent_os: linux
 droneci_autoscaler_agent_package_upgrade: false
 ```
 
+### droneci_autoscaler_agent_packages
+
+Install extra required packages during agents bootstrapping.
+
+#### Default value
+
+```YAML
+droneci_autoscaler_agent_packages: []
+```
+
 ### droneci_autoscaler_agent_token
 
 #### Default value