diff --git a/.github/workflows/bundle-update.yml b/.github/workflows/bundle-update.yml
index 9b09a1b..1db06f3 100644
--- a/.github/workflows/bundle-update.yml
+++ b/.github/workflows/bundle-update.yml
@@ -8,7 +8,7 @@ jobs:
     name: bundle update
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: pull request on bundle update
         uses: supermanner/pull-request-on-bundle-update@v1.0.1
         with:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 5f127cd..35e93c8 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index d26d2a6..94393de 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -15,6 +15,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: "Checkout Repository"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: "Dependency Review"
         uses: actions/dependency-review-action@v4
diff --git a/.github/workflows/test_build_push.yml b/.github/workflows/test_build_push.yml
index 8d378e3..e5791be 100644
--- a/.github/workflows/test_build_push.yml
+++ b/.github/workflows/test_build_push.yml
@@ -6,13 +6,13 @@ jobs:
   hadolint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: docker run --rm -i hadolint/hadolint < Dockerfile
 
   ruby:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: ruby/setup-ruby@v1
         with:
@@ -24,7 +24,7 @@ jobs:
   rspec:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: ruby/setup-ruby@v1
         with:
@@ -36,7 +36,7 @@ jobs:
     needs: hadolint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           bundler-cache: true
@@ -58,7 +58,7 @@ jobs:
       TAG_SHA: ${{ github.sha }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3