diff --git a/README.md b/README.md
index 4457fbe..412965d 100644
--- a/README.md
+++ b/README.md
@@ -395,7 +395,7 @@ page](https://github.com/zplug/zplug/wiki/Migration).
 [license]: http://b4b4r07.mit-license.org
 [travis-link]: https://travis-ci.org/zplug/zplug
 [travis-badge]: https://img.shields.io/travis/zplug/zplug.svg?style=flat-square
-[latest-badge]: https://img.shields.io/badge/latest-v2.4.1-ca7f85.svg?style=flat-square
+[latest-badge]: https://img.shields.io/badge/latest-v2.4.2-ca7f85.svg?style=flat-square
 [latest-link]: https://github.com/zplug/zplug/releases/latest
 [stable-badge]: https://img.shields.io/badge/stable-v2.3.2-e9a326.svg?style=flat-square
 [stable-link]: https://github.com/zplug/zplug/releases/tag/2.3.2
diff --git a/base/core/core.zsh b/base/core/core.zsh
index faee919..3fdec7c 100644
--- a/base/core/core.zsh
+++ b/base/core/core.zsh
@@ -176,7 +176,7 @@ __zplug::core::core::variable()
     typeset -gx    ZPLUG_CACHE_DIR=${ZPLUG_CACHE_DIR:-$ZPLUG_HOME/cache}
     typeset -gx    ZPLUG_REPOS=${ZPLUG_REPOS:-$ZPLUG_HOME/repos}
 
-    typeset -gx    _ZPLUG_VERSION="2.4.1"
+    typeset -gx    _ZPLUG_VERSION="2.4.2"
     typeset -gx    _ZPLUG_URL="https://github.com/zplug/zplug"
     typeset -gx    _ZPLUG_OHMYZSH="robbyrussell/oh-my-zsh"
     typeset -gx    _ZPLUG_PREZTO="sorin-ionescu/prezto"
diff --git a/doc/VERSION b/doc/VERSION
index 005119b..8e8299d 100644
--- a/doc/VERSION
+++ b/doc/VERSION
@@ -1 +1 @@
-2.4.1
+2.4.2
diff --git a/doc/guide/ja/README.md b/doc/guide/ja/README.md
index 4271988..eb763d3 100644
--- a/doc/guide/ja/README.md
+++ b/doc/guide/ja/README.md
@@ -392,7 +392,7 @@ antigen や zgen、もしくは zplug v1 から移行するための情報は [z
 [license]: http://b4b4r07.mit-license.org
 [travis-link]: https://travis-ci.org/zplug/zplug
 [travis-badge]: https://img.shields.io/travis/zplug/zplug.svg?style=flat-square
-[latest-badge]: https://img.shields.io/badge/latest-v2.4.1-ca7f85.svg?style=flat-square
+[latest-badge]: https://img.shields.io/badge/latest-v2.4.2-ca7f85.svg?style=flat-square
 [latest-link]: https://github.com/zplug/zplug/releases/latest
 [stable-badge]: https://img.shields.io/badge/stable-v2.3.2-e9a326.svg?style=flat-square
 [stable-link]: https://github.com/zplug/zplug/releases/tag/2.3.2