diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ff39d5a..f2796d8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,7 +25,7 @@ jobs:
 
   test-pr-check-npm:
     if: github.event_name == 'pull_request'
-    name: runner / textlint (github-pr-check)
+    name: runner / textlint (github-pr-check, npm)
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -46,7 +46,7 @@ jobs:
 
   test-pr-check-yarn:
     if: github.event_name == 'pull_request'
-    name: runner / textlint (github-pr-check)
+    name: runner / textlint (github-pr-check, yarn)
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -67,7 +67,7 @@ jobs:
 
   test-pr-check-pnpm:
     if: github.event_name == 'pull_request'
-    name: runner / textlint (github-pr-check)
+    name: runner / textlint (github-pr-check, pnpm)
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -90,6 +90,31 @@ jobs:
           reporter: github-pr-check
           textlint_flags: "doc/**"
 
+  test-pr-check-bun:
+    if: github.event_name == 'pull_request'
+    name: runner / textlint (github-pr-check, bun)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+      - name: Setup node
+        uses: actions/setup-node@v1
+        with:
+          node-version: 20
+      - name: Setup bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+      - name: textlint-github-check
+        uses: ./
+        with:
+          github_token: ${{ secrets.github_token }}
+          package_manager: bun
+          reporter: github-pr-check
+          textlint_flags: "doc/**"
+
   test-pr-review:
     if: github.event_name == 'pull_request'
     name: runner / textlint (github-pr-review)
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
diff --git a/action.yml b/action.yml
index ec23ce5..6e3c012 100644
--- a/action.yml
+++ b/action.yml
@@ -36,7 +36,7 @@ inputs:
     description: 'Tool name to use for reviewdog reporter'
     default: 'textlint'
   package_manager:
-    description: 'Package manager used in the repository'
+    description: 'Package manager used in the repository [npm,yarn,pnpm,bun]'
     default: 'npm'
 runs:
   using: 'composite'
diff --git a/script.sh b/script.sh
index 42dc587..5512849 100755
--- a/script.sh
+++ b/script.sh
@@ -11,6 +11,8 @@ echo '::group::🐶 Installing reviewdog ... https://github.com/reviewdog/review
 curl -sfL https://raw.githubusercontent.com/reviewdog/reviewdog/master/install.sh | sh -s -- -b "${TEMP_PATH}" "${REVIEWDOG_VERSION}" 2>&1
 echo '::endgroup::'
 
+PACKAGE_EXECUTER=npx
+
 echo '::group:: Installing textlint ...  https://github.com/textlint/textlint'
 if [ -x "./node_modules/.bin/textlint"  ]; then
   echo 'already installed'
@@ -23,6 +25,10 @@ elif [[ "${INPUT_PACKAGE_MANAGER}" == "yarn" ]]; then
 elif [[ "${INPUT_PACKAGE_MANAGER}" == "pnpm" ]]; then
   echo 'pnpm install start'
   pnpm install
+elif [[ "${INPUT_PACKAGE_MANAGER}" == "bun" ]]; then
+  echo 'bun install start'
+  bun install
+  PACKAGE_EXECUTER=bunx
 else
   echo 'The specified package manager is not supported.'
   echo '::endgroup::'
@@ -30,7 +36,7 @@ else
 fi
 
 if [ -x "./node_modules/.bin/textlint"  ]; then
-  npx textlint --version
+  $PACKAGE_EXECUTER textlint --version
 else
   echo 'This repository was not configured for textlint, process done.'
   exit 1
@@ -47,7 +53,7 @@ reviewdog_exit_val="0"
 reviewdog_exit_val2="0"
 
 # shellcheck disable=SC2086
-textlint_check_output=$(npx textlint -f checkstyle ${INPUT_TEXTLINT_FLAGS} 2>&1) \
+textlint_check_output=$(${PACKAGE_EXECUTER} textlint -f checkstyle ${INPUT_TEXTLINT_FLAGS} 2>&1) \
                       || textlint_exit_val="$?"
 
 # shellcheck disable=SC2086
@@ -64,7 +70,7 @@ echo '::endgroup::'
 if [[ "${INPUT_REPORTER}" == "github-pr-review" ]]; then
   echo '::group:: Running textlint fixing report 🐶 ...'
   # fix
-  npx textlint --fix ${INPUT_TEXTLINT_FLAGS:-.} || true
+  $PACKAGE_EXECUTER textlint --fix ${INPUT_TEXTLINT_FLAGS:-.} || true
 
   TMPFILE=$(mktemp)
   git diff > "${TMPFILE}"