diff --git a/CMakeLists.txt b/CMakeLists.txt
index 956e173..32c6fad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -214,7 +214,7 @@
     set (CMAKE_PREFIX_PATH ${CMAKE_BINARY_DIR}/prefix ${CMAKE_PREFIX_PATH})
 endif ()
 
-find_package (Boost 1.66 REQUIRED)
+find_package (Boost 1.71 REQUIRED)
 include_directories (SYSTEM ${BOOST_SRC_DIR})
 
 # add_definitions(-DBOOST_ASIO_ENABLE_HANDLER_TRACKING)