diff --git a/.github/actions/composer/composer/install/action.yaml b/.github/actions/composer/composer/install/action.yaml
index 573a4322..bab262e5 100644
--- a/.github/actions/composer/composer/install/action.yaml
+++ b/.github/actions/composer/composer/install/action.yaml
@@ -10,10 +10,6 @@ inputs:
   dependencies:
     description: "Which dependencies to install, one of \"lowest\", \"locked\", \"highest\""
     required: true
-  working-dir:
-    description: "Working direWhich dependencies to install, one of \"lowest\", \"locked\", \"highest\""
-    required: false
-    default: "."
 
 runs:
   using: "composite"
@@ -24,4 +20,3 @@ runs:
       run: "${{ github.action_path }}/run.sh"
       env:
         COMPOSER_INSTALL_DEPENDENCIES: "${{ inputs.dependencies }}"
-        COMPOSER_WORKING_DIR: "${{ inputs.working-dir }}"
diff --git a/.github/workflows/integrate.yaml b/.github/workflows/integrate.yaml
index a2e3cac1..f2139b09 100644
--- a/.github/workflows/integrate.yaml
+++ b/.github/workflows/integrate.yaml
@@ -265,7 +265,7 @@ jobs:
       - name: "Install PHP with extensions"
         uses: "shivammathur/setup-php@2.4.3"
         with:
-          coverage: "xdebug"
+          coverage: "pcov"
           extensions: "${{ env.PHP_EXTENSIONS }}"
           php-version: "${{ matrix.php-version }}"
 
@@ -287,11 +287,8 @@ jobs:
         with:
           dependencies: "${{ matrix.dependencies }}"
 
-      - name: "Dump Xdebug filter with phpunit/phpunit"
-        run: "vendor/bin/phpunit --configuration=test/Unit/phpunit.xml --dump-xdebug-filter=.build/phpunit/xdebug-filter.php"
-
-      - name: "Collect code coverage with Xdebug and phpunit/phpunit"
-        run: "vendor/bin/phpunit --configuration=test/Unit/phpunit.xml --coverage-clover=.build/logs/clover.xml --prepend=.build/phpunit/xdebug-filter.php"
+      - name: "Collect code coverage with pcov and phpunit/phpunit"
+        run: "vendor/bin/phpunit --configuration=test/Unit/phpunit.xml --coverage-clover=.build/logs/clover.xml"
 
       - name: "Send code coverage report to Codecov.io"
         env:
@@ -318,7 +315,7 @@ jobs:
       - name: "Install PHP with extensions"
         uses: "shivammathur/setup-php@2.4.3"
         with:
-          coverage: "xdebug"
+          coverage: "pcov"
           extensions: "${{ env.PHP_EXTENSIONS }}"
           php-version: "${{ matrix.php-version }}"
 
@@ -337,7 +334,7 @@ jobs:
         with:
           dependencies: "${{ matrix.dependencies }}"
 
-      - name: "Run mutation tests with Xdebug and infection/infection"
+      - name: "Run mutation tests with pcov and infection/infection"
         run: "vendor/bin/infection --ignore-msi-with-no-mutations --min-covered-msi=${{ env.MIN_COVERED_MSI }} --min-msi=${{ env.MIN_MSI }}"
 
   merge:
diff --git a/composer-require-checker.json b/composer-require-checker.json
index 3b68c3d2..51ebe49e 100644
--- a/composer-require-checker.json
+++ b/composer-require-checker.json
@@ -1,20 +1,20 @@
 {
-    "symbol-whitelist": [
-        "array",
-        "bool",
-        "callable",
-        "false",
-        "float",
-        "int",
-        "iterable",
-        "null",
-        "object",
-        "parent",
-        "self",
-        "static",
-        "string",
-        "true",
-        "void",
-        "PHPUnit\\Framework\\TestCase"
-    ]
+  "symbol-whitelist": [
+    "array",
+    "bool",
+    "callable",
+    "false",
+    "float",
+    "int",
+    "iterable",
+    "null",
+    "object",
+    "parent",
+    "self",
+    "static",
+    "string",
+    "true",
+    "void",
+    "PHPUnit\\Framework\\TestCase"
+  ]
 }