diff --git a/budoux/__init__.py b/budoux/__init__.py
index 2303db45..be719636 100644
--- a/budoux/__init__.py
+++ b/budoux/__init__.py
@@ -15,7 +15,7 @@
 
 from . import parser
 
-__version__ = "0.4.1"
+__version__ = "0.5.0"
 
 Parser = parser.Parser
 load_default_japanese_parser = parser.load_default_japanese_parser
diff --git a/javascript/package.json b/javascript/package.json
index 52396844..9dacee8c 100644
--- a/javascript/package.json
+++ b/javascript/package.json
@@ -1,6 +1,6 @@
 {
   "name": "budoux",
-  "version": "0.4.1",
+  "version": "0.5.0",
   "description": "A small chunk segmenter.",
   "repository": {
     "type": "git",
diff --git a/javascript/src/cli.ts b/javascript/src/cli.ts
index 775fd292..d934a094 100644
--- a/javascript/src/cli.ts
+++ b/javascript/src/cli.ts
@@ -24,7 +24,7 @@ import {
   loadDefaultJapaneseParser,
 } from './parser.js';
 
-const CLI_VERSION = '0.4.1';
+const CLI_VERSION = '0.5.0';
 const defaultParsers = loadDefaultParsers();
 
 /**