diff --git a/README.md b/README.md
index 43cf30f..e186113 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ textlint arguments (i.e. target dir:`doc/*`)
 
 ### `package_manager`
 
-Optional. Package manager used in the repository [npm,yarn,pnpm]
+Optional. Package manager used in the repository [npm,yarn,pnpm,bun]
 Default is `npm`.
 
 ## Customizes