diff --git a/docs/configuration/dns/server/http3.md b/docs/configuration/dns/server/http3.md
index 89f000e8..dd81ba2d 100644
--- a/docs/configuration/dns/server/http3.md
+++ b/docs/configuration/dns/server/http3.md
@@ -50,7 +50,7 @@ If domain name is used, `domain_resolver` must also be set to resolve IP address
 
 The port of the DNS server.
 
-`853` will be used by default.
+`443` will be used by default.
 
 #### path
 
diff --git a/docs/configuration/dns/server/https.md b/docs/configuration/dns/server/https.md
index 93dc71a4..46e69a55 100644
--- a/docs/configuration/dns/server/https.md
+++ b/docs/configuration/dns/server/https.md
@@ -50,7 +50,7 @@ If domain name is used, `domain_resolver` must also be set to resolve IP address
 
 The port of the DNS server.
 
-`853` will be used by default.
+`443` will be used by default.
 
 #### path