diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 58fa8fca5..f2c783d65 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -18,6 +18,8 @@ jobs:
         uses: actions/checkout@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
+          repository: ${{ github.event.pull_request.head.repo.full_name || github.repository }}
+          ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
       - name: Setup Bun
         uses: ./.github/actions/setup-bun
@@ -27,5 +29,3 @@ jobs:
           ./script/format.ts
         env:
           CI: true
-          GITHUB_HEAD_REF: ${{ github.head_ref }}
-          GITHUB_REF_NAME: ${{ github.ref_name }}
diff --git a/script/format.ts b/script/format.ts
index aa0e82534..f5a54a57f 100755
--- a/script/format.ts
+++ b/script/format.ts
@@ -5,10 +5,9 @@ import { $ } from "bun"
 await $`bun run prettier --ignore-unknown --write .`
 
 if (process.env["CI"] && (await $`git status --porcelain`.text())) {
-  const branch = process.env["GITHUB_HEAD_REF"] || process.env["GITHUB_REF_NAME"]
   await $`git config --local user.email "action@github.com"`
   await $`git config --local user.name "GitHub Action"`
   await $`git add -A`
   await $`git commit -m "chore: format code"`
-  await $`git push origin HEAD:${branch} --no-verify`
+  await $`git push --no-verify`
 }