@@ -35,9 +35,9 @@ server::server(const std::string& address, const std::string& port,
   signals_.async_wait(boost::bind(&server::handle_stop, this));

   // Open the acceptor with the option to reuse the address (i.e. SO_REUSEADDR).
-  boost::asio::ip::tcp::resolver resolver(io_service_);
-  boost::asio::ip::tcp::resolver::query query(address, port);
-  boost::asio::ip::tcp::endpoint endpoint = *resolver.resolve(query);
+  boost::asio::ip::tcp::resolver resolver(io_context_);
+  boost::asio::ip::tcp::endpoint endpoint =
+    *resolver.resolve(address, port).begin();
   acceptor_.open(endpoint.protocol());
   acceptor_.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
   acceptor_.bind(endpoint);