diff --git a/.github/workflows/code-style.yml b/.github/workflows/code-style.yml
index 87ce61dc..f5614205 100644
--- a/.github/workflows/code-style.yml
+++ b/.github/workflows/code-style.yml
@@ -14,7 +14,7 @@ jobs:
     name: Coding Guidelines
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: shivammathur/setup-php@v2
         with:
@@ -46,7 +46,7 @@ jobs:
     name: Type Checker
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: shivammathur/setup-php@v2
         with:
diff --git a/.github/workflows/mutation-testing.yml b/.github/workflows/mutation-testing.yml
index 7505908c..13fbd5eb 100644
--- a/.github/workflows/mutation-testing.yml
+++ b/.github/workflows/mutation-testing.yml
@@ -14,7 +14,7 @@ jobs:
     name: Mutation Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: shivammathur/setup-php@v2
         with:
@@ -28,4 +28,4 @@ jobs:
       - name: Run mutation tests
         env:
           STRYKER_DASHBOARD_API_KEY: ${{ secrets.STRYKER_DASHBOARD_API_KEY }}
-        run: ./vendor/bin/infection --show-mutations --threads=max --min-msi=75 --min-covered-msi=75
+        run: XDEBUG_MODE=coverage ./vendor/bin/infection --show-mutations --threads=max --min-msi=75 --min-covered-msi=75
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1602b2b7..17317287 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -22,7 +22,7 @@ jobs:
           - "ubuntu-latest"
 #          - "windows-latest" # TODO: Windows is not working in the CI at the moment for some reason
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: shivammathur/setup-php@v2
         with: