diff --git a/src/Transports/TCP.h b/src/Transports/TCP.h
index d2a18b98..345b5938 100644
--- a/src/Transports/TCP.h
+++ b/src/Transports/TCP.h
@@ -49,7 +49,7 @@ class TCP : public TransportInterface
 
  private:
   /// Boost Asio I/O functionality
-  boost::asio::io_service mIoService;
+  boost::asio::io_context mIoService;
 
   /// TCP socket
   boost::asio::ip::tcp::socket mSocket;
diff --git a/src/Transports/UDP.h b/src/Transports/UDP.h
index 6d6a7f35..6a556297 100644
--- a/src/Transports/UDP.h
+++ b/src/Transports/UDP.h
@@ -49,7 +49,7 @@ class UDP : public TransportInterface
 
  private:
   /// Boost Asio I/O functionality
-  boost::asio::io_service mIoService;
+  boost::asio::io_context mIoService;
 
   /// UDP socket
   boost::asio::ip::udp::socket mSocket;
diff --git a/src/Transports/Unix.h b/src/Transports/Unix.h
index 307b0eb3..f293c142 100644
--- a/src/Transports/Unix.h
+++ b/src/Transports/Unix.h
@@ -47,7 +47,7 @@ class Unix : public TransportInterface
 
  private:
   /// Boost Asio I/O functionality
-  boost::asio::io_service mIoService;
+  boost::asio::io_context mIoService;
 #if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
   /// Unix socket
   boost::asio::local::datagram_protocol::socket mSocket;