diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1b9323a..ba1f1e9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
         node-version: [22.x]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Node.js ${{ matrix.node-version }}のセットアップ
         uses: actions/setup-node@v4