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 574746e..f3e4a8c 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -13,7 +13,7 @@ jobs:
         php: [ '8.3', '8.4' ]
 
     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 09b8118..1492d36 100644
--- a/.github/workflows/setup_test.yml
+++ b/.github/workflows/setup_test.yml
@@ -31,7 +31,7 @@ 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