diff --git a/CMakeLists.txt b/CMakeLists.txt
index 936d494..54550c0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,11 +1,11 @@
-cmake_minimum_required(VERSION 3.2)
+cmake_minimum_required(VERSION 3.15.0)
 project(msgpack VERSION 0.0.1 LANGUAGES C CXX)
 
 option(ENABLE_TESTING "ENABLE_TESTING" OFF)
 option(ENABLE_BENCHMARKING "ENABLE_BENCHMARKING" OFF)
 option(ENABLE_TRAVIS "ENABLE_TRAVIS" OFF)
 
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
 
diff --git a/packer.h b/packer.h
index 47f90d7..04c466e 100644
--- a/packer.h
+++ b/packer.h
@@ -9,6 +9,7 @@
 #include <type_traits>
 #include <vector>
 #include "platform.h"
+#include <locale>
 #include <codecvt>
 
 namespace msgpack {
diff --git a/unpacker.h b/unpacker.h
index 5a16f5e..9304ae3 100644
--- a/unpacker.h
+++ b/unpacker.h
@@ -66,7 +66,7 @@ class unpacker {
     explicit unpacker(const buffer_type& buf)
             : _buffer(std::make_shared<buffer_type>(buf)), _it{ _buffer->cbegin() }, _it_end{ _buffer->cend() } {}
     explicit unpacker(buffer_type&& buf)
-            : _buffer(std::make_shared<buffer_type>(move(buf))), _it{ _buffer->cbegin() }, _it_end{ _buffer->cend() } {}
+            : _buffer(std::make_shared<buffer_type>(std::move(buf))), _it{ _buffer->cbegin() }, _it_end{ _buffer->cend() } {}
 
     inline unpacker& operator>>(bool& value);
     inline unpacker& operator>>(int8_t& value);