diff --git a/README.ja.md b/README.ja.md
index 4709784..895e58a 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -825,6 +825,7 @@ $ git config --global alias.ac 'add -A . && commit'
 | `git st` | `git status -sb` | `git config --global alias.st 'status -sb'` |
 | `git tags` | `git tag -l` | `git config --global alias.tags 'tag -l'` |
 | `git branches` | `git branch -a` | `git config --global alias.branches 'branch -a'` |
+| `git cleanup` | `git branch --merged | grep -v '*' | xargs git branch -d` | `git config --global alias.cleanup "!git branch --merged | grep -v '*' | xargs git branch -d"` |
 | `git remotes` | `git remote -v` | `git config --global alias.remotes 'remote -v'` |
 | `git lg` | `git log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --` | `git config --global alias.lg "log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --"` |
 
diff --git a/README.ko.md b/README.ko.md
index f9fc797..ab5fc77 100644
--- a/README.ko.md
+++ b/README.ko.md
@@ -853,6 +853,7 @@ $ git config --global alias.ac 'add -A . && commit'
 | `git st` | `git status -sb` | `git config --global alias.st 'status -sb'` |
 | `git tags` | `git tag -l` | `git config --global alias.tags 'tag -l'` |
 | `git branches` | `git branch -a` | `git config --global alias.branches 'branch -a'` |
+| `git cleanup` | `git branch --merged | grep -v '*' | xargs git branch -d` | `git config --global alias.cleanup "!git branch --merged | grep -v '*' | xargs git branch -d"` |
 | `git remotes` | `git remote -v` | `git config --global alias.remotes 'remote -v'` |
 | `git lg` | `git log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --` | `git config --global alias.lg "log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --"` |
 
diff --git a/README.md b/README.md
index ad67dbf..6f943d2 100644
--- a/README.md
+++ b/README.md
@@ -838,6 +838,7 @@ Some useful aliases include:
 | `git st` | `git status -sb` | `git config --global alias.st 'status -sb'` |
 | `git tags` | `git tag -l` | `git config --global alias.tags 'tag -l'` |
 | `git branches` | `git branch -a` | `git config --global alias.branches 'branch -a'` |
+| `git cleanup` | `git branch --merged | grep -v '*' | xargs git branch -d` | `git config --global alias.cleanup "!git branch --merged | grep -v '*' | xargs git branch -d"` |
 | `git remotes` | `git remote -v` | `git config --global alias.remotes 'remote -v'` |
 | `git lg` | `git log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --` | `git config --global alias.lg "log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --"` |
 
diff --git a/README.zh-cn.md b/README.zh-cn.md
index c2068f7..780bcdd 100644
--- a/README.zh-cn.md
+++ b/README.zh-cn.md
@@ -808,6 +808,7 @@ $ git config --global alias.ac 'add -A . && commit'
 | `git st` | `git status -sb` | `git config --global alias.st 'status -sb'` |
 | `git tags` | `git tag -l` | `git config --global alias.tags 'tag -l'` |
 | `git branches` | `git branch -a` | `git config --global alias.branches 'branch -a'` |
+| `git cleanup` | `git branch --merged | grep -v '*' | xargs git branch -d` | `git config --global alias.cleanup "!git branch --merged | grep -v '*' | xargs git branch -d"` |
 | `git remotes` | `git remote -v` | `git config --global alias.remotes 'remote -v'` |
 | `git lg` | `git log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --` | `git config --global alias.lg "log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --"` |