diff --git a/.github/workflows/reviewapp.yml b/.github/workflows/reviewapp.yml
index 7f3f69b89..2d89576dc 100644
--- a/.github/workflows/reviewapp.yml
+++ b/.github/workflows/reviewapp.yml
@@ -16,25 +16,12 @@ jobs:
       pull-requests: write
     if: ${{ ! startsWith(github.head_ref, 'renovate/') }}
     steps:
-      - id: check_if_triggered_by_pr_label
-        run: |
-          if [ "${{ github.event.pull_request.head.sha }}" != "" ]; then
-            echo -n "value=true" >> "$GITHUB_OUTPUT"
-          else
-            echo -n "value=false" >> "$GITHUB_OUTPUT"
-          fi
-
       - uses: actions/checkout@v4
-        if: steps.check_if_triggered_by_pr_label.outputs.value == 'true'
         with:
           fetch-depth: 0
+          # もし PullRequest Label トリガーの場合、merge 前の branch を checkout する
           ref: ${{ github.event.pull_request.head.sha }}
 
-      - uses: actions/checkout@v4
-        if: steps.check_if_triggered_by_pr_label.outputs.value == 'false'
-        with:
-          fetch-depth: 0
-
       - id: check_if_reviewapp
         continue-on-error: true
         env: