diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 0a5936b8..b82eb757 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -27,7 +27,7 @@ jobs:
       security-events: write
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v3
       with:
diff --git a/.github/workflows/commit-message.yml b/.github/workflows/commit-message.yml
index 00101169..66a2f00d 100644
--- a/.github/workflows/commit-message.yml
+++ b/.github/workflows/commit-message.yml
@@ -12,7 +12,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js ${{ env.CURRENT_NODE_VERSION }}
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/editorconfiglint.yml b/.github/workflows/editorconfiglint.yml
index 60cf9f4d..c5b60c1d 100644
--- a/.github/workflows/editorconfiglint.yml
+++ b/.github/workflows/editorconfiglint.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - uses: actions/setup-go@v5
     - run: go install github.com/editorconfig-checker/editorconfig-checker/v2/cmd/editorconfig-checker@latest
     - run: ~/go/bin/editorconfig-checker
diff --git a/.github/workflows/eslint.yml b/.github/workflows/eslint.yml
index a61621da..5e2555fb 100644
--- a/.github/workflows/eslint.yml
+++ b/.github/workflows/eslint.yml
@@ -22,7 +22,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4.1.0
         with:
diff --git a/.github/workflows/fta.yml b/.github/workflows/fta.yml
index 658c22c6..01ba842c 100644
--- a/.github/workflows/fta.yml
+++ b/.github/workflows/fta.yml
@@ -22,7 +22,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/knip.yml b/.github/workflows/knip.yml
index cb941f12..88f2cee8 100644
--- a/.github/workflows/knip.yml
+++ b/.github/workflows/knip.yml
@@ -22,7 +22,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/language-lint.yml b/.github/workflows/language-lint.yml
index b439268d..bffa0165 100644
--- a/.github/workflows/language-lint.yml
+++ b/.github/workflows/language-lint.yml
@@ -16,7 +16,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/license-check.yml b/.github/workflows/license-check.yml
index 4f06e99e..9d48adc5 100644
--- a/.github/workflows/license-check.yml
+++ b/.github/workflows/license-check.yml
@@ -16,7 +16,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/lighthouse-check.yml b/.github/workflows/lighthouse-check.yml
index f83e638a..1389f3dd 100644
--- a/.github/workflows/lighthouse-check.yml
+++ b/.github/workflows/lighthouse-check.yml
@@ -27,7 +27,7 @@ jobs:
       security-events: write
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Setup Node.js environment
       uses: actions/setup-node@v4
       with:
diff --git a/.github/workflows/mdlint.yml b/.github/workflows/mdlint.yml
index 1bed238f..acf6072b 100644
--- a/.github/workflows/mdlint.yml
+++ b/.github/workflows/mdlint.yml
@@ -18,7 +18,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/pull-request-size.yml b/.github/workflows/pull-request-size.yml
index 5924ab5e..ed137eab 100644
--- a/.github/workflows/pull-request-size.yml
+++ b/.github/workflows/pull-request-size.yml
@@ -7,7 +7,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
index 855f5f0c..a4520433 100644
--- a/.github/workflows/spellcheck.yml
+++ b/.github/workflows/spellcheck.yml
@@ -18,7 +18,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/stylelint.yml b/.github/workflows/stylelint.yml
index 491e503d..8a04b3ae 100644
--- a/.github/workflows/stylelint.yml
+++ b/.github/workflows/stylelint.yml
@@ -18,7 +18,7 @@ jobs:
   stylelint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
@@ -31,7 +31,7 @@ jobs:
   duplicate-style-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 75ae8768..e8771607 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,7 +28,7 @@ jobs:
         - 21
         - 22
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js ${{matrix.version}}
         uses: actions/setup-node@v4.1.0
         with:
@@ -57,7 +57,7 @@ jobs:
           - 3
           - 4
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4.1.0
         with: