diff --git a/.github/workflows/code-standards.yml b/.github/workflows/code-standards.yml
index 4b5566d..958ed44 100644
--- a/.github/workflows/code-standards.yml
+++ b/.github/workflows/code-standards.yml
@@ -50,7 +50,7 @@ jobs:
         CONFIG: ${{ inputs.config }}
         CONFIG_PATH: ${{ inputs.path }}
       steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
diff --git a/.github/workflows/doctum.yml b/.github/workflows/doctum.yml
index 61a9a32..b995726 100644
--- a/.github/workflows/doctum.yml
+++ b/.github/workflows/doctum.yml
@@ -31,7 +31,7 @@ jobs:
         runs-on: ubuntu-latest
         steps:
         - name: Checkout
-          uses: actions/checkout@v4
+          uses: actions/checkout@v6
           with:
             fetch-depth: 0
         - name: Setup PHP
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 201dc30..1f8583e 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -20,7 +20,7 @@ jobs:
       runs-on: ubuntu-latest
       name: PHPStan Static Analysis
       steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e8fbe7d..9c616b7 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -14,7 +14,7 @@ jobs:
                 php: [ "8.0", "8.1", "8.2", "8.3", "8.4" ]
         name: PHP ${{matrix.php }} Unit Test
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
             - name: Setup PHP
               uses: shivammathur/setup-php@v2
               with: