diff --git a/CMakeLists.txt b/CMakeLists.txt
index aa3ec4d..87d5696 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.16)
 project(
   cpp_yyjson
-  VERSION 0.5.0
+  VERSION 0.6.0
   LANGUAGES CXX)
 
 # check if the project is top-level
diff --git a/include/cpp_yyjson.hpp b/include/cpp_yyjson.hpp
index 18d6ba2..0042aff 100644
--- a/include/cpp_yyjson.hpp
+++ b/include/cpp_yyjson.hpp
@@ -1,5 +1,5 @@
 /*===================================================*
-|  cpp-yyjson version v0.5.0                         |
+|  cpp-yyjson version v0.6.0                         |
 |  https://github.com/yosh-matsuda/cpp-yyjson        |
 |                                                    |
 |  Copyright (c) 2024 Yoshiki Matsuda @yosh-matsuda  |