diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4b617c1..b9925ce 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
   build-and-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-node@v4
         with:
@@ -44,7 +44,7 @@ jobs:
   browser-e2e:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v4
         with:
           node-version: '20'
@@ -63,8 +63,8 @@ jobs:
   drift:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
+      - uses: actions/checkout@v7
         with:
           repository: GIGAyama/GIGAyama.github.io
           path: .standards-src