diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index b485beb..e59bb7e 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -8,7 +8,7 @@ jobs:
 
         strategy:
             matrix:
-                php-versions: ['8.1', '8.2', '8.3']
+                php-versions: ['8.3']
         name: PHP ${{ matrix.php-versions }}
         steps:
             -   uses: actions/checkout@v2
diff --git a/composer.json b/composer.json
index 0214e0d..7fcec4c 100644
--- a/composer.json
+++ b/composer.json
@@ -4,9 +4,9 @@
     "license":           "MIT",
     "minimum-stability": "stable",
     "require": {
-        "php":                              "^8.1",
+        "php":                              "^8.3",
         "hostnet/entity-tracker-component": "^2.0.0",
-        "psr/log":                          "^1.1.0",
+        "psr/log":                          "^1.1.0||^2.0.0||^3.0.0",
         "symfony/config":                   "^5.4||^6.0",
         "symfony/dependency-injection":     "^5.4||^6.0",
         "symfony/http-kernel":              "^5.4||^6.0",
@@ -16,10 +16,10 @@
         "hostnet/entity-blamable-component": "^1.0.4",
         "hostnet/phpcs-tool":                "^9.1.0",
         "phpspec/prophecy":                  "^1.19",
+        "phpspec/prophecy-phpunit":          "^2.2",
         "phpunit/phpunit":                   "^9.5.6",
         "symfony/framework-bundle":          "^5.4||^6.0",
-        "symfony/security-bundle":           "^5.4||^6.0",
-        "phpspec/prophecy-phpunit": "^2.2"
+        "symfony/security-bundle":           "^5.4||^6.0"
     },
     "suggest": {
         "hostnet/entity-blamable-component": "Provides the @Blamable annotation and listeners",
diff --git a/src/DependencyInjection/Configuration.php b/src/DependencyInjection/Configuration.php
index c3e62b6..4527646 100644
--- a/src/DependencyInjection/Configuration.php
+++ b/src/DependencyInjection/Configuration.php
@@ -6,23 +6,26 @@
 
 namespace Hostnet\Bundle\EntityTrackerBundle\DependencyInjection;
 
-use Symfony\Component\Config\Definition\Builder\NodeDefinition;
 use Symfony\Component\Config\Definition\Builder\TreeBuilder;
 use Symfony\Component\Config\Definition\ConfigurationInterface;
-use Symfony\Component\HttpKernel\Kernel;
 
 class Configuration implements ConfigurationInterface
 {
-    public const REVISION_FACTORY_INTERFACE  = 'Hostnet\Component\EntityRevision\Factory\RevisionFactoryInterface';
-    public const BLAMABLE_PROVIDER_INTERFACE = 'Hostnet\Component\EntityBlamable\Provider\BlamableProviderInterface';
-    public const BLAMABLE_DEFAULT_PROVIDER   = 'entity_tracker.provider.blamable';
+    public const string REVISION_FACTORY_INTERFACE
+        = 'Hostnet\Component\EntityRevision\Factory\RevisionFactoryInterface';
 
-    private const CONFIG_ROOT = 'hostnet_entity_tracker';
+    public const string BLAMABLE_PROVIDER_INTERFACE
+        = 'Hostnet\Component\EntityBlamable\Provider\BlamableProviderInterface';
+
+    public const string BLAMABLE_DEFAULT_PROVIDER
+        = 'entity_tracker.provider.blamable';
+
+    private const string CONFIG_ROOT = 'hostnet_entity_tracker';
 
     public function getConfigTreeBuilder(): TreeBuilder
     {
-        $tree_builder = $this->createTreeBuilder();
-        $root_node    = $this->retrieveRootNode($tree_builder);
+        $tree_builder = new TreeBuilder(self::CONFIG_ROOT);
+        $root_node    = $tree_builder->getRootNode();
 
         $component_info = 'Configures and enables the %s listener';
 
@@ -58,30 +61,4 @@ public function getConfigTreeBuilder(): TreeBuilder
 
         return $tree_builder;
     }
-
-    private function createTreeBuilder(): TreeBuilder
-    {
-        if (Kernel::VERSION_ID >= 40200) {
-            return new TreeBuilder(self::CONFIG_ROOT);
-        }
-
-        if (Kernel::VERSION_ID < 40200) {
-            return new TreeBuilder();
-        }
-
-        throw new \RuntimeException('This bundle can only be used by Symfony 4.0 and up.');
-    }
-
-    private function retrieveRootNode(TreeBuilder $tree_builder): NodeDefinition
-    {
-        if (Kernel::VERSION_ID >= 40200) {
-            return $tree_builder->getRootNode();
-        }
-
-        if (Kernel::VERSION_ID < 40200) {
-            return $tree_builder->root(self::CONFIG_ROOT);
-        }
-
-        throw new \RuntimeException('This bundle can only be used by Symfony 4.0 and up.');
-    }
 }
diff --git a/src/DependencyInjection/HostnetEntityTrackerExtension.php b/src/DependencyInjection/HostnetEntityTrackerExtension.php
index 2337131..01c416c 100644
--- a/src/DependencyInjection/HostnetEntityTrackerExtension.php
+++ b/src/DependencyInjection/HostnetEntityTrackerExtension.php
@@ -14,9 +14,9 @@
 
 class HostnetEntityTrackerExtension extends Extension
 {
-    private const BLAMABLE = 'Hostnet\Component\EntityBlamable\Blamable';
-    private const MUTATION = 'Hostnet\Component\EntityMutation\Mutation';
-    private const REVISION = 'Hostnet\Component\EntityRevision\Revision';
+    private const string BLAMABLE = 'Hostnet\Component\EntityBlamable\Blamable';
+    private const string MUTATION = 'Hostnet\Component\EntityMutation\Mutation';
+    private const string REVISION = 'Hostnet\Component\EntityRevision\Revision';
 
     public function load(array $configs, ContainerBuilder $container): void
     {