diff --git a/.github/workflows/php-cs-fixer.yml b/.github/workflows/php-cs-fixer.yml
index 4bd669b..0807c41 100644
--- a/.github/workflows/php-cs-fixer.yml
+++ b/.github/workflows/php-cs-fixer.yml
@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.head_ref }}
 
diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index 7253c8c..07465eb 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -13,7 +13,7 @@ jobs:
         php: [ '8.1', '8.2', '8.3' ]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -21,7 +21,7 @@ jobs:
           php-version: ${{ matrix.php }}
 
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install dependencies
         run: |
diff --git a/.github/workflows/setup_test.yml b/.github/workflows/setup_test.yml
index 12ff4d0..fb5b1c0 100644
--- a/.github/workflows/setup_test.yml
+++ b/.github/workflows/setup_test.yml
@@ -28,7 +28,7 @@ jobs:
           php-version: ${{ matrix.php }}
 
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install dependencies
         run: |
diff --git a/.github/workflows/update-changelog.yml b/.github/workflows/update-changelog.yml
index f43efc1..45d5e4f 100644
--- a/.github/workflows/update-changelog.yml
+++ b/.github/workflows/update-changelog.yml
@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: main