diff --git a/src/interest-table.cpp b/src/interest-table.cpp
index 8b98316..9eef231 100644
--- a/src/interest-table.cpp
+++ b/src/interest-table.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
 /*
- * Copyright (c) 2012-2019 University of California, Los Angeles
+ * Copyright (c) 2012-2023 University of California, Los Angeles
  *
  * This file is part of ChronoSync, synchronization library for distributed realtime
  * applications for NDN.
@@ -26,7 +26,7 @@
 
 namespace chronosync {
 
-InterestTable::InterestTable(boost::asio::io_service& io)
+InterestTable::InterestTable(boost::asio::io_context& io)
   : m_scheduler(io)
 {
 }