diff --git a/module/Common/src/Image/ImageBuilder.php b/module/Common/src/Image/ImageBuilder.php
index 2dc3b942..06940327 100644
--- a/module/Common/src/Image/ImageBuilder.php
+++ b/module/Common/src/Image/ImageBuilder.php
@@ -6,6 +6,7 @@ namespace Shlinkio\Shlink\Common\Image;
 use mikehaertl\wkhtmlto\Image;
 use Zend\ServiceManager\AbstractPluginManager;
 
+/** @deprecated  */
 class ImageBuilder extends AbstractPluginManager implements ImageBuilderInterface
 {
     protected $instanceOf = Image::class;
diff --git a/module/Common/src/Image/ImageBuilderFactory.php b/module/Common/src/Image/ImageBuilderFactory.php
index a330666f..93c369bb 100644
--- a/module/Common/src/Image/ImageBuilderFactory.php
+++ b/module/Common/src/Image/ImageBuilderFactory.php
@@ -10,6 +10,7 @@ use Zend\ServiceManager\Exception\ServiceNotCreatedException;
 use Zend\ServiceManager\Exception\ServiceNotFoundException;
 use Zend\ServiceManager\Factory\FactoryInterface;
 
+/** @deprecated  */
 class ImageBuilderFactory implements FactoryInterface
 {
     /**
diff --git a/module/Common/src/Image/ImageBuilderInterface.php b/module/Common/src/Image/ImageBuilderInterface.php
index ff4baeeb..c2d3c820 100644
--- a/module/Common/src/Image/ImageBuilderInterface.php
+++ b/module/Common/src/Image/ImageBuilderInterface.php
@@ -5,6 +5,7 @@ namespace Shlinkio\Shlink\Common\Image;
 
 use Zend\ServiceManager\ServiceLocatorInterface;
 
+/** @deprecated  */
 interface ImageBuilderInterface extends ServiceLocatorInterface
 {
 }
diff --git a/module/Common/src/Image/ImageFactory.php b/module/Common/src/Image/ImageFactory.php
index 1305d16d..b02cde04 100644
--- a/module/Common/src/Image/ImageFactory.php
+++ b/module/Common/src/Image/ImageFactory.php
@@ -10,6 +10,7 @@ use Zend\ServiceManager\Exception\ServiceNotCreatedException;
 use Zend\ServiceManager\Exception\ServiceNotFoundException;
 use Zend\ServiceManager\Factory\FactoryInterface;
 
+/** @deprecated  */
 class ImageFactory implements FactoryInterface
 {
     /**
diff --git a/module/Common/src/Logger/LoggerFactory.php b/module/Common/src/Logger/LoggerFactory.php
index 0671bbcc..7e896108 100644
--- a/module/Common/src/Logger/LoggerFactory.php
+++ b/module/Common/src/Logger/LoggerFactory.php
@@ -5,29 +5,14 @@ namespace Shlinkio\Shlink\Common\Logger;
 
 use Cascade\Cascade;
 use Interop\Container\ContainerInterface;
-use Interop\Container\Exception\ContainerException;
-use Zend\ServiceManager\Exception\ServiceNotCreatedException;
-use Zend\ServiceManager\Exception\ServiceNotFoundException;
-use Zend\ServiceManager\Factory\FactoryInterface;
+use Monolog\Logger;
 
 use function count;
 use function explode;
 
-class LoggerFactory implements FactoryInterface
+class LoggerFactory
 {
-    /**
-     * Create an object
-     *
-     * @param  ContainerInterface $container
-     * @param  string $requestedName
-     * @param  null|array $options
-     * @return object
-     * @throws ServiceNotFoundException if unable to resolve the service.
-     * @throws ServiceNotCreatedException if an exception is raised when
-     *     creating a service.
-     * @throws ContainerException if any other error occurs
-     */
-    public function __invoke(ContainerInterface $container, $requestedName, ?array $options = null)
+    public function __invoke(ContainerInterface $container, string $requestedName, ?array $options = null): Logger
     {
         $config = $container->has('config') ? $container->get('config') : [];
         Cascade::fileConfig($config['logger'] ?? ['loggers' => []]);
diff --git a/module/Common/src/Middleware/IpAddressMiddlewareFactory.php b/module/Common/src/Middleware/IpAddressMiddlewareFactory.php
index 67063c28..73d643b4 100644
--- a/module/Common/src/Middleware/IpAddressMiddlewareFactory.php
+++ b/module/Common/src/Middleware/IpAddressMiddlewareFactory.php
@@ -3,28 +3,17 @@ declare(strict_types=1);
 
 namespace Shlinkio\Shlink\Common\Middleware;
 
-use Interop\Container\ContainerInterface;
+use Psr\Container\ContainerInterface;
 use RKA\Middleware\IpAddress;
-use Shlinkio\Shlink\Core\Model\Visitor;
-use Zend\ServiceManager\Exception\ServiceNotCreatedException;
-use Zend\ServiceManager\Exception\ServiceNotFoundException;
-use Zend\ServiceManager\Factory\FactoryInterface;
 
-class IpAddressMiddlewareFactory implements FactoryInterface
+class IpAddressMiddlewareFactory
 {
-    /**
-     * Create an object
-     *
-     * @param  ContainerInterface $container
-     * @param  string $requestedName
-     * @param  null|array $options
-     * @throws ServiceNotFoundException if unable to resolve the service.
-     * @throws ServiceNotCreatedException if an exception is raised when creating a service.
-     */
-    public function __invoke(ContainerInterface $container, $requestedName, ?array $options = null): IpAddress
+    public const REQUEST_ATTR = 'remote_address';
+
+    public function __invoke(ContainerInterface $container): IpAddress
     {
         $config = $container->get('config');
         $headersToInspect = $config['ip_address_resolution']['headers_to_inspect'] ?? [];
-        return new IpAddress(true, [], Visitor::REMOTE_ADDRESS_ATTR, $headersToInspect);
+        return new IpAddress(true, [], self::REQUEST_ATTR, $headersToInspect);
     }
 }
diff --git a/module/Common/test/Middleware/IpAddressMiddlewareFactoryTest.php b/module/Common/test/Middleware/IpAddressMiddlewareFactoryTest.php
index 4a3361bd..fdf81a35 100644
--- a/module/Common/test/Middleware/IpAddressMiddlewareFactoryTest.php
+++ b/module/Common/test/Middleware/IpAddressMiddlewareFactoryTest.php
@@ -6,7 +6,6 @@ namespace ShlinkioTest\Shlink\Common\Middleware;
 use PHPUnit\Framework\TestCase;
 use ReflectionObject;
 use Shlinkio\Shlink\Common\Middleware\IpAddressMiddlewareFactory;
-use Shlinkio\Shlink\Core\Model\Visitor;
 use Zend\ServiceManager\ServiceManager;
 
 class IpAddressMiddlewareFactoryTest extends TestCase
@@ -26,7 +25,7 @@ class IpAddressMiddlewareFactoryTest extends TestCase
     {
         $instance = ($this->factory)(new ServiceManager(['services' => [
             'config' => $config,
-        ]]), '');
+        ]]));
 
         $ref = new ReflectionObject($instance);
         $checkProxyHeaders = $ref->getProperty('checkProxyHeaders');
@@ -40,7 +39,7 @@ class IpAddressMiddlewareFactoryTest extends TestCase
 
         $this->assertTrue($checkProxyHeaders->getValue($instance));
         $this->assertEquals([], $trustedProxies->getValue($instance));
-        $this->assertEquals(Visitor::REMOTE_ADDRESS_ATTR, $attributeName->getValue($instance));
+        $this->assertEquals(IpAddressMiddlewareFactory::REQUEST_ATTR, $attributeName->getValue($instance));
         $this->assertEquals($expectedHeadersToInspect, $headersToInspect->getValue($instance));
     }
 
diff --git a/module/Core/src/Model/Visitor.php b/module/Core/src/Model/Visitor.php
index 8a8107cf..1a4506b7 100644
--- a/module/Core/src/Model/Visitor.php
+++ b/module/Core/src/Model/Visitor.php
@@ -4,11 +4,10 @@ declare(strict_types=1);
 namespace Shlinkio\Shlink\Core\Model;
 
 use Psr\Http\Message\ServerRequestInterface;
+use Shlinkio\Shlink\Common\Middleware\IpAddressMiddlewareFactory;
 
 final class Visitor
 {
-    public const REMOTE_ADDRESS_ATTR = 'remote_address';
-
     /** @var string */
     private $userAgent;
     /** @var string */
@@ -28,7 +27,7 @@ final class Visitor
         return new self(
             $request->getHeaderLine('User-Agent'),
             $request->getHeaderLine('Referer'),
-            $request->getAttribute(self::REMOTE_ADDRESS_ATTR)
+            $request->getAttribute(IpAddressMiddlewareFactory::REQUEST_ATTR)
         );
     }