diff --git a/Configuration.md b/Configuration.md
index aec4662..b3359b2 100644
--- a/Configuration.md
+++ b/Configuration.md
@@ -358,6 +358,9 @@ Settings are stored in [YAML format](https://en.wikipedia.org/wiki/YAML), possib
       OS.
     - `all_servers` — Enables parallel queries to all configured upstream servers to speed up resolving. If disabled, the queries are sent to each upstream server one-by-one and then sorted by RTT.
     - `fastest_addr` — Use Fastest Address algorithm. It finds an IP address with the lowest latency and returns this IP address in DNS response.
+    - `fastest_timeout` (**since v0.107.0**) — The timeout used for dialing the
+      addresses while picking the fastest.  Values other than positive ones are
+      replaced with the default one, `1s`.
   - **ECS settings**
     - `edns_client_subnet` — Enable EDNS Client Subnet option. If enabled, AdGuard Home will be sending ECS extension to the upstream DNS servers. Please note, that this will be done for clients with public IP addresses only.
   - **Access settings**