diff --git a/applications/http-mandelbrot/src/main.cpp b/applications/http-mandelbrot/src/main.cpp
index 37973b3..5f3fe76 100644
--- a/applications/http-mandelbrot/src/main.cpp
+++ b/applications/http-mandelbrot/src/main.cpp
@@ -198,8 +198,7 @@ void fractal(
                     std::cout << "   DONE HTTP inside render function " << target << std::endl;
                 };
 
-                m_ioc.post(renderfn);
-
+                boost::asio::post(m_ioc, renderfn);
             }
             else
             {
@@ -237,7 +236,7 @@ int main(int argc, char **argv)
         });
 
 
-    ioc.post([&ioc, &httpserver, &request_handler]{
+    boost::asio::post(ioc, [&ioc, &httpserver, &request_handler]{
         httpserver = std::make_shared<bmrshared::web::server>(
             ioc,
             listen_endpoint,
diff --git a/bmrshared-web/lib/internal_server.cpp b/bmrshared-web/lib/internal_server.cpp
index e96d5e0..17669c7 100644
--- a/bmrshared-web/lib/internal_server.cpp
+++ b/bmrshared-web/lib/internal_server.cpp
@@ -169,7 +169,7 @@ void internal_server::session_on_read(std::shared_ptr<http_session> session,
                     req->m_response_sender = rs;
 
                     // Queue processing of the queue so we can continue.
-                    shared_server->m_io_context.post([shared_server]{shared_server->session_process_queued();});
+                    boost::asio::post(shared_server->m_io_context,[shared_server]{shared_server->session_process_queued();});
                 }
             };
 
diff --git a/conanfile.py b/conanfile.py
index 7d9d643..b0a2bd9 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -5,7 +5,7 @@ from conan.tools.cmake import CMake, CMakeToolchain, CMakeDeps
 
 class HelloConan(ConanFile):
     settings = "os", "compiler", "build_type", "arch"
-    requires = "boost/1.84.0", "gtest/1.14.0", "libmagic/5.45", "freetype/2.13.3", "libjpeg/9f"
+    requires = "boost/1.89.0", "gtest/1.14.0", "libmagic/5.45", "freetype/2.13.3", "libjpeg/9f"
     generators = "CMakeDeps"
     build_policy = "*"