diff --git a/boost/network/compat.hpp b/boost/network/compat.hpp
new file mode 100644
index 000000000..a22b4a2a7
--- /dev/null
+++ b/boost/network/compat.hpp
@@ -0,0 +1,19 @@
+#ifndef BOOST_NETWORK_COMPAT_HPP__
+#define BOOST_NETWORK_COMPAT_HPP__
+
+// Copyright 2019 (C) Enrico Detoma
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// These macros are used to solve a compatibility problem with Boost >= 1.70
+// where the deprecated method get_io_service() was removed.
+#if BOOST_VERSION >= 107000
+#define CPP_NETLIB_ASIO_GET_IO_SERVICE(s) ((boost::asio::io_context&)(s).get_executor().context())
+#define CPP_NETLIB_ASIO_IO_SERVICE_CONTEXT	boost::asio::io_context
+#else
+#define CPP_NETLIB_ASIO_GET_IO_SERVICE(s) ((s).get_io_service())
+#define CPP_NETLIB_ASIO_IO_SERVICE_CONTEXT	boost::asio::io_service
+#endif
+
+#endif  // BOOST_NETWORK_COMPAT_HPP__
diff --git a/boost/network/protocol/http/client/connection/async_base.hpp b/boost/network/protocol/http/client/connection/async_base.hpp
index ec1737828..455e7940f 100644
--- a/boost/network/protocol/http/client/connection/async_base.hpp
+++ b/boost/network/protocol/http/client/connection/async_base.hpp
@@ -16,6 +16,7 @@
 #include <boost/network/protocol/http/client/connection/async_normal.hpp>
 #include <boost/network/protocol/http/traits/resolver_policy.hpp>
 #include <boost/network/traits/string.hpp>
+#include <boost/network/compat.hpp>
 
 namespace boost {
 namespace network {
@@ -59,7 +60,7 @@ struct async_connection_base {
         async_connection;
     typedef typename delegate_factory<Tag>::type delegate_factory_type;
     auto delegate = delegate_factory_type::new_connection_delegate(
-        resolver.get_io_service(), https, always_verify_peer,
+        CPP_NETLIB_ASIO_GET_IO_SERVICE(resolver), https, always_verify_peer,
         certificate_filename, verify_path, certificate_file, private_key_file,
         ciphers, sni_hostname, ssl_options);
     auto temp = std::make_shared<async_connection>(
diff --git a/boost/network/protocol/http/client/connection/async_normal.hpp b/boost/network/protocol/http/client/connection/async_normal.hpp
index adae8edf0..107c8bf0e 100644
--- a/boost/network/protocol/http/client/connection/async_normal.hpp
+++ b/boost/network/protocol/http/client/connection/async_normal.hpp
@@ -32,6 +32,7 @@
 #include <boost/range/algorithm/transform.hpp>
 #include <boost/range/iterator_range.hpp>
 #include <boost/throw_exception.hpp>
+#include <boost/network/compat.hpp>
 
 namespace boost {
 namespace network {
@@ -154,12 +155,12 @@ struct http_async_connection
                         connection_delegate_ptr delegate)
       : timeout_(timeout),
         remove_chunk_markers_(remove_chunk_markers),
-        timer_(resolver.get_io_service()),
+        timer_(CPP_NETLIB_ASIO_GET_IO_SERVICE(resolver)),
         is_timedout_(false),
         follow_redirect_(follow_redirect),
         resolver_(resolver),
         resolve_(std::move(resolve)),
-        request_strand_(resolver.get_io_service()),
+        request_strand_(CPP_NETLIB_ASIO_GET_IO_SERVICE(resolver)),
         delegate_(std::move(delegate)) {}
 
   // This is the main entry point for the connection/request pipeline.
diff --git a/boost/network/protocol/http/client/connection/connection_delegate_factory.hpp b/boost/network/protocol/http/client/connection/connection_delegate_factory.hpp
index fa419e1e6..8b86465c4 100644
--- a/boost/network/protocol/http/client/connection/connection_delegate_factory.hpp
+++ b/boost/network/protocol/http/client/connection/connection_delegate_factory.hpp
@@ -34,7 +34,8 @@ struct connection_delegate_factory {
   // This is the factory method that actually returns the delegate instance.
   // TODO(dberris): Support passing in proxy settings when crafting connections.
   static connection_delegate_ptr new_connection_delegate(
-      boost::asio::io_service& service, bool https, bool always_verify_peer,
+      CPP_NETLIB_ASIO_IO_SERVICE_CONTEXT& service,
+      bool https, bool always_verify_peer,
       optional<string_type> certificate_filename,
       optional<string_type> verify_path, optional<string_type> certificate_file,
       optional<string_type> private_key_file, optional<string_type> ciphers,
diff --git a/boost/network/protocol/http/client/connection/sync_normal.hpp b/boost/network/protocol/http/client/connection/sync_normal.hpp
index 1f3775474..ec55e0e10 100644
--- a/boost/network/protocol/http/client/connection/sync_normal.hpp
+++ b/boost/network/protocol/http/client/connection/sync_normal.hpp
@@ -16,6 +16,7 @@
 #include <boost/network/protocol/http/response.hpp>
 #include <boost/network/protocol/http/traits/resolver_policy.hpp>
 #include <boost/network/traits/string.hpp>
+#include <boost/network/compat.hpp>
 
 namespace boost {
 namespace network {
@@ -49,10 +50,10 @@ struct http_sync_connection
                        int timeout)
       : connection_base(),
         timeout_(timeout),
-        timer_(resolver.get_io_service()),
+        timer_(CPP_NETLIB_ASIO_GET_IO_SERVICE(resolver)),
         resolver_(resolver),
         resolve_(std::move(resolve)),
-        socket_(resolver.get_io_service()) {}
+        socket_(CPP_NETLIB_ASIO_GET_IO_SERVICE(resolver)) {}
 
   void init_socket(string_type const& hostname, string_type const& port) {
     connection_base::init_socket(socket_, resolver_, hostname, port, resolve_);
diff --git a/boost/network/protocol/http/client/connection/sync_ssl.hpp b/boost/network/protocol/http/client/connection/sync_ssl.hpp
index 349449512..e25da99df 100644
--- a/boost/network/protocol/http/client/connection/sync_ssl.hpp
+++ b/boost/network/protocol/http/client/connection/sync_ssl.hpp
@@ -16,6 +16,7 @@
 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/network/protocol/http/request.hpp>
 #include <boost/network/protocol/http/traits/resolver_policy.hpp>
+#include <boost/network/compat.hpp>
 
 namespace boost {
 namespace network {
@@ -60,11 +61,11 @@ struct https_sync_connection
       long ssl_options = 0)
       : connection_base(),
         timeout_(timeout),
-        timer_(resolver.get_io_service()),
+        timer_(CPP_NETLIB_ASIO_GET_IO_SERVICE(resolver)),
         resolver_(resolver),
         resolve_(std::move(resolve)),
-        context_(resolver.get_io_service(), boost::asio::ssl::context::sslv23_client),
-        socket_(resolver.get_io_service(), context_) {
+        context_(CPP_NETLIB_ASIO_GET_IO_SERVICE(resolver), boost::asio::ssl::context::sslv23_client),
+        socket_(CPP_NETLIB_ASIO_GET_IO_SERVICE(resolver), context_) {
     if (ciphers) {
       ::SSL_CTX_set_cipher_list(context_.native_handle(), ciphers->c_str());
     }