diff --git a/conanfile.py b/conanfile.py
index d5ee621b..d3dbd48f 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -63,7 +63,7 @@ def build_requirements(self):
 
     def requirements(self):
         self.requires("secp256k1/0.22.0", transitive_headers=True, transitive_libs=True)
-        self.requires("boost/1.86.0", transitive_headers=True, transitive_libs=True)
+        self.requires("boost/1.87.0", transitive_headers=True, transitive_libs=True)
         self.requires("fmt/11.0.2", transitive_headers=True, transitive_libs=True)
         self.requires("expected-lite/0.8.0", transitive_headers=True, transitive_libs=True)
         self.requires("ctre/3.9.0", transitive_headers=True, transitive_libs=True)
diff --git a/include/kth/infrastructure/utility/asio.hpp b/include/kth/infrastructure/utility/asio.hpp
index 5c68052a..023074b3 100644
--- a/include/kth/infrastructure/utility/asio.hpp
+++ b/include/kth/infrastructure/utility/asio.hpp
@@ -34,7 +34,7 @@ using time_point = steady_clock::time_point;
 #if ! defined(__EMSCRIPTEN__)
 using timer = ::asio::basic_waitable_timer<steady_clock>;
 
-using service = ::asio::io_service;
+using service = ::asio::io_context;
 using address = ::asio::ip::address;
 using ipv4 = ::asio::ip::address_v4;
 using ipv6 = ::asio::ip::address_v6;
@@ -44,10 +44,11 @@ using endpoint = ::asio::ip::tcp::endpoint;
 using socket = tcp::socket;
 using acceptor = tcp::acceptor;
 using resolver = tcp::resolver;
-using query = tcp::resolver::query;
-using iterator = tcp::resolver::iterator;
+// using query = tcp::resolver::query;
+// using iterator = tcp::resolver::iterator;
 
-constexpr int max_connections = ::asio::socket_base::max_connections;
+// constexpr int max_connections = ::asio::socket_base::max_connections;
+constexpr int max_connections = 128;
 
 // Boost thread is used because of thread_specific_ptr limitation:
 // stackoverflow.com/q/22448022/1172329
diff --git a/include/kth/infrastructure/utility/threadpool.hpp b/include/kth/infrastructure/utility/threadpool.hpp
index 915af74f..9fa7267d 100644
--- a/include/kth/infrastructure/utility/threadpool.hpp
+++ b/include/kth/infrastructure/utility/threadpool.hpp
@@ -99,7 +99,8 @@ class KI_API threadpool
     std::atomic<size_t> size_;
     std::vector<asio::thread> threads_;
     mutable upgrade_mutex threads_mutex_;
-    std::shared_ptr<asio::service::work> work_;
+    // std::shared_ptr<asio::service::work> work_;
+    boost::asio::executor_work_guard<boost::asio::io_context::executor_type> work_;
     mutable upgrade_mutex work_mutex_;
 };
 
diff --git a/include/kth/infrastructure/utility/work.hpp b/include/kth/infrastructure/utility/work.hpp
index 90dd2f98..b23d0a00 100644
--- a/include/kth/infrastructure/utility/work.hpp
+++ b/include/kth/infrastructure/utility/work.hpp
@@ -53,7 +53,11 @@ class KI_API work
     template <typename Handler, typename... Args>
     void concurrent(Handler&& handler, Args&&... args) {
         // Service post ensures the job does not execute in the current thread.
-        service_.post(BIND_HANDLER(handler, args));
+        // service_.post(BIND_HANDLER(handler, args));
+        boost::asio::post(service_, BIND_HANDLER(handler, args));
+
+
+
         ////service_.post(inject(BIND_HANDLER(handler, args), CONCURRENT,
         ////    concurrent_));
     }
@@ -72,7 +76,12 @@ class KI_API work
     void unordered(Handler&& handler, Args&&... args) {
         // Use a strand wrapper to prevent concurrency and a service post
         // to deny ordering while ensuring execution on another thread.
-        service_.post(strand_.wrap(BIND_HANDLER(handler, args)));
+        // service_.post(strand_.wrap(BIND_HANDLER(handler, args)));
+
+        boost::asio::post(service_, boost::asio::bind_executor(strand_, BIND_HANDLER(handler, args)));
+
+
+
         ////service_.post(strand_.wrap(inject(BIND_HANDLER(handler, args),
         ////    UNORDERED, unordered_)));
     }
diff --git a/src/config/authority.cpp b/src/config/authority.cpp
index 3ced4d10..152d4617 100644
--- a/src/config/authority.cpp
+++ b/src/config/authority.cpp
@@ -67,7 +67,8 @@ static
 asio::ipv6 to_ipv6(asio::ipv4 const& ipv4_address) {
     // Create an IPv6 mapped IPv4 address via serialization.
     auto const ipv6 = to_ipv6(ipv4_address.to_string());
-    return asio::ipv6::from_string(ipv6);
+    // return asio::ipv6::from_string(ipv6);
+    return boost::asio::ip::make_address_v6(ipv6);
 }
 
 static
@@ -236,7 +237,8 @@ std::istream& operator>>(std::istream& input, authority& argument) {
         std::string ip_address = ipv6 ? ipv6.to_string() : to_ipv6(ipv4.to_string());
 
 #if ! defined(__EMSCRIPTEN__)
-        argument.ip_ = asio::ipv6::from_string(ip_address);
+        // argument.ip_ = asio::ipv6::from_string(ip_address);
+        argument.ip_ = boost::asio::ip::make_address_v6(ip_address);
 #endif
 
         if (port) {
diff --git a/src/utility/threadpool.cpp b/src/utility/threadpool.cpp
index 214037dc..35c8b704 100644
--- a/src/utility/threadpool.cpp
+++ b/src/utility/threadpool.cpp
@@ -59,8 +59,8 @@ void threadpool::spawn_once(thread_priority priority) {
     if ( ! work_) {
         work_mutex_.unlock_upgrade_and_lock();
         //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-        work_ = std::make_shared<asio::service::work>(service_);
-
+        // work_ = std::make_shared<asio::service::work>(service_);
+        work_ = boost::asio::make_work_guard(service_);
         work_mutex_.unlock_and_lock_upgrade();
         //-----------------------------------------------------------------
     }