diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0f7f08f..c77a6fb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
 
 project(cppinyin)
 
-set(CPPINYIN_VERSION "0.5")
+set(CPPINYIN_VERSION "0.6")
 
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
diff --git a/pyproject.toml b/pyproject.toml
index f67706c..831e993 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "cppinyin"
-version = "0.5"
+version = "0.6"
 authors = [
   { name="Next-gen Kaldi development team", email="wkang@pku.edu.cn" },
 ]