diff --git a/Optional-Hardening.md b/Optional-Hardening.md
index d63f0a4..b210d44 100644
--- a/Optional-Hardening.md
+++ b/Optional-Hardening.md
@@ -183,7 +183,7 @@ Use the provider below for better [threat protection](https://quad9.net/service/
 :star: Create a profile with [NextDNS](https://nextdns.io/?from=xujj63g5) and follow our [configuration guide](https://github.com/yokoffing/NextDNS-Config) for greater protection from ads, trackers, and security threats.
 ```javascript
 // PREF: set DoH provider
-user_pref("network.trr.uri", "https://dns.quad9.net/dns-query");
+user_pref("network.trr.uri", "https://freedns.controld.com/x-hagezi-tif");
 ```
 
 #### Option 1: Increased Protection