diff --git a/.github/workflows/basics.yml b/.github/workflows/basics.yml
index 7209f9ad..11e135ac 100644
--- a/.github/workflows/basics.yml
+++ b/.github/workflows/basics.yml
@@ -28,7 +28,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install PHP
         uses: shivammathur/setup-php@v2
diff --git a/.github/workflows/quicktest.yml b/.github/workflows/quicktest.yml
index ed144fb7..f547d346 100644
--- a/.github/workflows/quicktest.yml
+++ b/.github/workflows/quicktest.yml
@@ -36,7 +36,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # With stable PHPCS dependencies, allow for PHP deprecation notices.
       # Unit tests don't need to fail on those for stable releases where those issues won't get fixed anymore.
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f2adcf3e..9b863770 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -64,7 +64,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # With stable PHPCS dependencies, allow for PHP deprecation notices.
       # Unit tests don't need to fail on those for stable releases where those issues won't get fixed anymore.
@@ -160,7 +160,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # With stable PHPCS dependencies, allow for PHP deprecation notices.
       # Unit tests don't need to fail on those for stable releases where those issues won't get fixed anymore.