diff --git a/index.md b/index.md
index 3635444..fccf7b7 100644
--- a/index.md
+++ b/index.md
@@ -33,6 +33,7 @@ Setup [Drone CI](https://drone.io/) base server. Drone is a Continuous Delivery
   * [droneci_networks](#droneci_networks)
   * [droneci_networks_applied](#droneci_networks_applied)
   * [droneci_no_proxy](#droneci_no_proxy)
+  * [droneci_prometheus_anonymous_access](#droneci_prometheus_anonymous_access)
   * [droneci_restart_policy](#droneci_restart_policy)
   * [droneci_secret](#droneci_secret)
   * [droneci_service_directory](#droneci_service_directory)
@@ -271,6 +272,14 @@ droneci_no_proxy:
   - drone-agent
 ```
 
+### droneci_prometheus_anonymous_access
+
+#### Default value
+
+```YAML
+droneci_prometheus_anonymous_access: false
+```
+
 ### droneci_restart_policy
 
 #### Default value