diff --git a/.github/workflows/backwards-compatibility.yml b/.github/workflows/backwards-compatibility.yml
index 5980b6b0..0308d03f 100644
--- a/.github/workflows/backwards-compatibility.yml
+++ b/.github/workflows/backwards-compatibility.yml
@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/coding-standards.yml b/.github/workflows/coding-standards.yml
index 1feb3585..ed5b6d19 100644
--- a/.github/workflows/coding-standards.yml
+++ b/.github/workflows/coding-standards.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
diff --git a/.github/workflows/composer-json-lint.yml b/.github/workflows/composer-json-lint.yml
index 57490bed..2bd4b05c 100644
--- a/.github/workflows/composer-json-lint.yml
+++ b/.github/workflows/composer-json-lint.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
diff --git a/.github/workflows/mutation-tests.yml b/.github/workflows/mutation-tests.yml
index 87a12bab..cb122316 100644
--- a/.github/workflows/mutation-tests.yml
+++ b/.github/workflows/mutation-tests.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index 4d69a469..33d27058 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
@@ -80,7 +80,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
@@ -124,7 +124,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@2.24.0"
diff --git a/.github/workflows/release-on-milestone-closed.yml b/.github/workflows/release-on-milestone-closed.yml
index 21488a97..c12d4693 100644
--- a/.github/workflows/release-on-milestone-closed.yml
+++ b/.github/workflows/release-on-milestone-closed.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Release"
         uses: "laminas/automatic-releases@v1"
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 308f3a90..55f7f9d8 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4"
+        uses: "actions/checkout@v6"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"