diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ba129bc9..06457c85 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
@@ -49,10 +49,10 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: "Checkout build-cs"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: "phpstan/build-cs"
           path: "build-cs"
@@ -99,7 +99,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
@@ -138,7 +138,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
diff --git a/.github/workflows/create-tag.yml b/.github/workflows/create-tag.yml
index 8452d986..a8535014 100644
--- a/.github/workflows/create-tag.yml
+++ b/.github/workflows/create-tag.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
           token: ${{ secrets.PHPSTAN_BOT_TOKEN }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 92b72547..e4a8ac62 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Generate changelog
         id: changelog
diff --git a/stubs/Symfony/Component/HttpFoundation/ParameterBag.stub b/stubs/Symfony/Component/HttpFoundation/ParameterBag.stub
index 00a40741..0a6858e3 100644
--- a/stubs/Symfony/Component/HttpFoundation/ParameterBag.stub
+++ b/stubs/Symfony/Component/HttpFoundation/ParameterBag.stub
@@ -7,5 +7,10 @@ namespace Symfony\Component\HttpFoundation;
  */
 class ParameterBag implements \IteratorAggregate
 {
-
+    /**
+     * @return list<string>
+     */
+    public function keys(): array
+    {
+    }
 }