diff --git a/nginx/snippets/ssl_params.conf b/nginx/snippets/ssl_params.conf
index 1a36c89..1c9dce9 100644
--- a/nginx/snippets/ssl_params.conf
+++ b/nginx/snippets/ssl_params.conf
@@ -20,7 +20,7 @@ ssl_session_tickets off;
 ssl_stapling on;
 ssl_stapling_verify on;
 # Define os servidores DNS para a verificação do OCSP.
-resolver 8.8.8.8 8.8.4.4 172.16.254.252 172.16.254.253 172.16.254.251 valid=300s;
+resolver 172.16.254.253 172.16.254.251 172.16.254.252 valid=300s;
 resolver_timeout 5s;
 # Aponta para o nosso ficheiro de parâmetros Diffie-Hellman para Perfect Forward Secrecy.
 ssl_dhparam /etc/ssl/certs/dhparam.pem;