diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 32507e7..5f51299 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -11,7 +11,7 @@ jobs:
     name: Validate yaml files
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - run: pip install openapi-spec-validator
       - run: find ./kintone -name "openapi.yaml" -type f | xargs openapi-spec-validator
 
@@ -19,7 +19,7 @@ jobs:
     name: Check that all bundled yaml files are updated
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
         with:
@@ -33,7 +33,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
         with:
@@ -46,7 +46,7 @@ jobs:
     name: Check website build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/swagger.yaml b/.github/workflows/swagger.yaml
index ee375f1..3073d24 100644
--- a/.github/workflows/swagger.yaml
+++ b/.github/workflows/swagger.yaml
@@ -21,7 +21,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
         with: