diff --git a/bin/git-rename-tag b/bin/git-rename-tag
new file mode 100644
index 0000000..8b6bcab
--- /dev/null
+++ b/bin/git-rename-tag
@@ -0,0 +1,9 @@
+old=$1
+new=$2
+
+test -z $old && echo "old tag name required." 1>&2 && exit 1
+test -z $new && echo "new tag name required." 1>&2 && exit 1
+
+git tag $old $new
+git tag -d $old
+git push origin :refs/tag/$old
\ No newline at end of file