diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b4efd9d..dd1ee88 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -14,7 +14,7 @@ jobs:
 
         steps:
             - name: "Checkout code"
-              uses: actions/checkout@v3
+              uses: actions/checkout@v4
 
             - name: PHP-CS-Fixer
               uses: docker://oskarstark/php-cs-fixer-ga:2.18.3
@@ -28,7 +28,7 @@ jobs:
 
         steps:
             - name: "Checkout code"
-              uses: actions/checkout@v3
+              uses: actions/checkout@v4
 
             - name: composer-normalize
               uses: docker://ergebnis/composer-normalize-action:0.8.0
@@ -45,7 +45,7 @@ jobs:
 
         steps:
             - name: "Checkout code"
-              uses: actions/checkout@v3
+              uses: actions/checkout@v4
 
             - name: Install PHP
               uses: shivammathur/setup-php@2.25.5
@@ -80,7 +80,7 @@ jobs:
 
         steps:
             - name: "Checkout code"
-              uses: actions/checkout@v3
+              uses: actions/checkout@v4
 
             - name: Install PHP with extensions
               uses: shivammathur/setup-php@2.25.5