diff --git a/.github/workflows/compatibility.yml b/.github/workflows/compatibility.yml
index 6254827..7f4b72c 100644
--- a/.github/workflows/compatibility.yml
+++ b/.github/workflows/compatibility.yml
@@ -13,7 +13,7 @@ jobs:
       matrix:
         operating-system: [ 'ubuntu-22.04' ]
         php: [ '8.3' ]
-        symfony: [ '5.4.*']
+        symfony: [ '6.4.*']
 
     steps:
       - uses: actions/checkout@v4
diff --git a/composer.json b/composer.json
index a43f5b7..1c3050a 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     "composer-runtime-api": "^2.2",
     "mashape/unirest-php": "^3.0.4",
     "ptlis/diff-parser": "^1.1.0",
-    "symfony/console": "^5.4.46",
+    "symfony/console": "^6.4",
     "symfony/polyfill-php83": "^1.31",
     "symfony/polyfill-uuid": "^1.31.0"
   },
@@ -30,8 +30,8 @@
     "roave/security-advisories": "dev-latest",
     "rregeer/phpunit-coverage-check": "^0.3.1",
     "squizlabs/php_codesniffer": "^3.10.3",
-    "symfony/framework-bundle": "^5.4.45",
-    "symfony/var-dumper": "^5.4.46",
+    "symfony/framework-bundle": "^6.4",
+    "symfony/var-dumper": "^6.4",
     "webmozart/assert": "^1.11.0"
   },
   "autoload": {
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 9034928..7b90352 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,32 +1,26 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- https://phpunit.readthedocs.io/en/latest/configuration.html -->
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         bootstrap="vendor/autoload.php"
-         backupGlobals="false"
-         colors="true"
-         processIsolation="false"
-         stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd">
-    <php>
-        <ini name="display_errors" value="1"/>
-        <ini name="error_reporting" value="-1"/>
-        <server name="APP_ENV" value="test" force="true"/>
-        <server name="SHELL_VERBOSITY" value="-1"/>
-        <server name="SYMFONY_PHPUNIT_REMOVE" value=""/>
-        <server name="SYMFONY_PHPUNIT_VERSION" value="9.6"/>
-
-        <!-- ###+ symfony/framework-bundle ### -->
-        <env name="APP_ENV" value="dev"/>
-        <env name="APP_SECRET" value="a87958dcb2134d448a20e881478d1826"/>
-        <!-- ###- symfony/framework-bundle ### -->
-    </php>
-    <testsuites>
-        <testsuite name="Project Test Suite">
-            <directory suffix="Test.php">tests</directory>
-        </testsuite>
-    </testsuites>
-    <coverage>
-        <include>
-            <directory suffix=".php">src</directory>
-        </include>
-    </coverage>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" bootstrap="vendor/autoload.php" backupGlobals="false" colors="true" processIsolation="false" stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd">
+  <php>
+    <ini name="display_errors" value="1"/>
+    <ini name="error_reporting" value="-1"/>
+    <server name="APP_ENV" value="test" force="true"/>
+    <server name="SHELL_VERBOSITY" value="-1"/>
+    <server name="SYMFONY_PHPUNIT_REMOVE" value=""/>
+    <server name="SYMFONY_PHPUNIT_VERSION" value="9.6"/>
+    <!-- ###+ symfony/framework-bundle ### -->
+    <env name="APP_ENV" value="dev"/>
+    <env name="APP_SECRET" value="a87958dcb2134d448a20e881478d1826"/>
+    <!-- ###- symfony/framework-bundle ### -->
+  </php>
+  <testsuites>
+    <testsuite name="Project Test Suite">
+      <directory suffix="Test.php">tests</directory>
+    </testsuite>
+  </testsuites>
+  <source>
+    <include>
+      <directory suffix=".php">src</directory>
+    </include>
+  </source>
 </phpunit>