diff --git a/.gitignore b/.gitignore
index 987e2a2..6cf8222 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
 composer.lock
 vendor
+/.phpunit.result.cache
+/phpunit.xml.dist.bak
+/.phpunit.cache/
diff --git a/README.md b/README.md
index 7aefab4..a4406ad 100644
--- a/README.md
+++ b/README.md
@@ -7,13 +7,16 @@ Content analysis for the purpose of determining [Internet media types][1].
 Requirements
 ------------
 
- * PHP 5.3+
+ * PHP 8.1+
 
 
 Installation
 ------------
  
 Through [Composer][2] as [dflydev/canal][3].
+```shell
+composer require dflydev/canal
+```
 
 
 Usage
@@ -61,4 +64,4 @@ This work was heavily influenced by [Apache Tika][4] and [Ferret][5].
 [2]: http://getcomposer.org
 [3]: https://packagist.org/packages/dflydev/canal
 [4]: http://tika.apache.org
-[5]: https://github.com/versionable/Ferret
\ No newline at end of file
+[5]: https://github.com/versionable/Ferret
diff --git a/composer.json b/composer.json
index 370b705..d46e15a 100644
--- a/composer.json
+++ b/composer.json
@@ -1,33 +1,41 @@
 {
-    "name": "dflydev/canal",
-    "description": "Content analysis for the purpose of determining Internet media types.",
-    "keywords": ["mime", "content", "type", "detection"],
-    "license": "MIT",
-    "authors": [
-        {
-            "name": "Dragonfly Development Inc.",
-            "email": "info@dflydev.com",
-            "homepage": "http://dflydev.com"
-        },
-        {
-            "name": "Beau Simensen",
-            "email": "beau@dflydev.com",
-            "homepage": "http://beausimensen.com"
-        }
-    ],
-    "require": {
-        "php": ">=5.3.3",
-        "dflydev/apache-mime-types": "1.0.*",
-        "webignition/internet-media-type": "0.*"
+  "name": "dflydev/canal",
+  "description": "Content analysis for the purpose of determining Internet media types.",
+  "keywords": [
+    "mime",
+    "content",
+    "type",
+    "detection"
+  ],
+  "license": "MIT",
+  "authors": [
+    {
+      "name": "Dragonfly Development Inc.",
+      "email": "info@dflydev.com",
+      "homepage": "https://dflydev.com"
     },
-    "autoload": {
-        "psr-0": {
-            "Dflydev\\Canal": "src"
-        }
-    },
-    "extra": {
-        "branch-alias": {
-            "dev-master": "1.0-dev"
-        }
+    {
+      "name": "Beau Simensen",
+      "email": "beau@dflydev.com",
+      "homepage": "https://beausimensen.com"
+    }
+  ],
+  "require": {
+    "php": ">=8.1",
+    "dflydev/apache-mime-types": "1.0.*",
+    "webignition/internet-media-type": "0.*"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "^9.4"
+  },
+  "autoload": {
+    "psr-0": {
+      "Dflydev\\Canal": "src"
+    }
+  },
+  "extra": {
+    "branch-alias": {
+      "dev-master": "1.0-dev"
     }
+  }
 }
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 570da50..521b66f 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,14 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit colors="true" bootstrap="vendor/autoload.php">
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         colors="true"
+         bootstrap="vendor/autoload.php"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.3/phpunit.xsd"
+         cacheDirectory=".phpunit.cache"
+>
+    <coverage/>
     <testsuites>
         <testsuite name="Canal Test Suite">
             <directory>./tests/Dflydev/Canal</directory>
         </testsuite>
     </testsuites>
-
-    <filter>
-        <whitelist>
+    <source>
+        <include>
             <directory>./src/Dflydev/Canal/</directory>
-        </whitelist>
-    </filter>
+        </include>
+    </source>
 </phpunit>
diff --git a/src/Dflydev/Canal/InternetMediaType/Adapter/Webignition/InternetMediaType.php b/src/Dflydev/Canal/InternetMediaType/Adapter/Webignition/InternetMediaType.php
index 578b7c8..e6e706e 100644
--- a/src/Dflydev/Canal/InternetMediaType/Adapter/Webignition/InternetMediaType.php
+++ b/src/Dflydev/Canal/InternetMediaType/Adapter/Webignition/InternetMediaType.php
@@ -2,9 +2,11 @@
 
 namespace Dflydev\Canal\InternetMediaType\Adapter\Webignition;
 
+use AllowDynamicProperties;
 use Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface;
 use webignition\InternetMediaType\InternetMediaType as WebignitionInternetMediaType;
 
+#[AllowDynamicProperties] 
 class InternetMediaType implements InternetMediaTypeInterface
 {
     public function __construct(WebignitionInternetMediaType $internetMediaType)
diff --git a/src/Dflydev/Canal/InternetMediaType/Adapter/Webignition/InternetMediaTypeParser.php b/src/Dflydev/Canal/InternetMediaType/Adapter/Webignition/InternetMediaTypeParser.php
index 878e162..0de001a 100644
--- a/src/Dflydev/Canal/InternetMediaType/Adapter/Webignition/InternetMediaTypeParser.php
+++ b/src/Dflydev/Canal/InternetMediaType/Adapter/Webignition/InternetMediaTypeParser.php
@@ -2,10 +2,12 @@
 
 namespace Dflydev\Canal\InternetMediaType\Adapter\Webignition;
 
+use AllowDynamicProperties;
 use Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface;
 use Dflydev\Canal\InternetMediaType\InternetMediaTypeFactory;
 use webignition\InternetMediaType\Parser\Parser;
 
+#[AllowDynamicProperties] 
 class InternetMediaTypeParser implements InternetMediaTypeParserInterface
 {
     private $parser;
diff --git a/src/Dflydev/Canal/InternetMediaType/InternetMediaTypeFactory.php b/src/Dflydev/Canal/InternetMediaType/InternetMediaTypeFactory.php
index 139a6b4..ff6e4bc 100644
--- a/src/Dflydev/Canal/InternetMediaType/InternetMediaTypeFactory.php
+++ b/src/Dflydev/Canal/InternetMediaType/InternetMediaTypeFactory.php
@@ -2,8 +2,10 @@
 
 namespace Dflydev\Canal\InternetMediaType;
 
+use AllowDynamicProperties;
 use Dflydev\Canal\InternetMediaType\Adapter\Webignition\InternetMediaTypeParser;
 
+#[AllowDynamicProperties]
 class InternetMediaTypeFactory
 {
     const TEXT_PLAIN = 'text/plain';
diff --git a/tests/Dflydev/Canal/Analyzer/AnalyzerTest.php b/tests/Dflydev/Canal/Analyzer/AnalyzerTest.php
index da59c6e..06eb754 100644
--- a/tests/Dflydev/Canal/Analyzer/AnalyzerTest.php
+++ b/tests/Dflydev/Canal/Analyzer/AnalyzerTest.php
@@ -3,8 +3,9 @@
 namespace Dflydev\Canal\Analyzer;
 
 use Dflydev\Canal\Metadata\Metadata;
+use PHPUnit\Framework\TestCase;
 
-class AnalyzerTest extends \PHPUnit_Framework_TestCase
+class AnalyzerTest extends TestCase
 {
     public function testKnownType()
     {
diff --git a/tests/Dflydev/Canal/Detector/ApacheMimeTypesExtensionDetectorTest.php b/tests/Dflydev/Canal/Detector/ApacheMimeTypesExtensionDetectorTest.php
index 8edc981..05cedbe 100644
--- a/tests/Dflydev/Canal/Detector/ApacheMimeTypesExtensionDetectorTest.php
+++ b/tests/Dflydev/Canal/Detector/ApacheMimeTypesExtensionDetectorTest.php
@@ -2,14 +2,17 @@
 
 namespace Dflydev\Canal\Detector;
 
+use Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface;
+use Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface;
 use Dflydev\Canal\Metadata\Metadata;
+use PHPUnit\Framework\TestCase;
 
-class ApacheMimeTypesExtensionDetectorTest extends \PHPUnit_Framework_TestCase
+class ApacheMimeTypesExtensionDetectorTest extends TestCase
 {
     public function testDefaultRepositoryWithNoMetadata()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $metadata = $this->getMock('Dflydev\Canal\Metadata\Metadata');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $metadata = $this->getMockBuilder(Metadata::class)->getMock();
 
         $detector = new ApacheMimeTypesExtensionDetector;
 
@@ -19,8 +22,8 @@ public function testDefaultRepositoryWithNoMetadata()
 
     public function testDefaultRepositoryWithNonsenseMetadata()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $metadata = $this->getMock('Dflydev\Canal\Metadata\Metadata');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $metadata = $this->getMockBuilder(Metadata::class)->getMock();
 
         $metadata
             ->expects($this->once())
@@ -36,9 +39,9 @@ public function testDefaultRepositoryWithNonsenseMetadata()
 
     public function testDefaultRepositoryWithMetadata()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $metadata = $this->getMock('Dflydev\Canal\Metadata\Metadata');
-        $expectedInternetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $metadata = $this->getMockBuilder(Metadata::class)->getMock();
+        $expectedInternetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
 
         $metadata
             ->expects($this->once())
@@ -66,10 +69,10 @@ public function testDefaultRepositoryWithMetadata()
 
     public function testCustomRepositoryWithMetadata()
     {
-        $repository = $this->getMock('Dflydev\ApacheMimeTypes\RepositoryInterface');
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $metadata = $this->getMock('Dflydev\Canal\Metadata\Metadata');
-        $expectedInternetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $repository = $this->getMockBuilder('Dflydev\ApacheMimeTypes\RepositoryInterface')->getMock();
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $metadata = $this->getMockBuilder(Metadata::class)->getMock();
+        $expectedInternetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
 
         $repository
             ->expects($this->once())
diff --git a/tests/Dflydev/Canal/Detector/CompositeDetectorTest.php b/tests/Dflydev/Canal/Detector/CompositeDetectorTest.php
index 6c6f305..69aa1f6 100644
--- a/tests/Dflydev/Canal/Detector/CompositeDetectorTest.php
+++ b/tests/Dflydev/Canal/Detector/CompositeDetectorTest.php
@@ -2,12 +2,17 @@
 
 namespace Dflydev\Canal\Detector;
 
-class CompositeDetectorTest extends \PHPUnit_Framework_TestCase
+use Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface;
+use Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface;
+use Dflydev\Canal\Metadata\Metadata;
+use PHPUnit\Framework\TestCase;
+
+class CompositeDetectorTest extends TestCase
 {
     public function testEmpty()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $metadata = $this->getMock('Dflydev\Canal\Metadata\Metadata');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $metadata = $this->getMockBuilder(Metadata::class)->getMock();
 
         $detector = new CompositeDetector;
 
@@ -17,9 +22,9 @@ public function testEmpty()
 
     public function testAllFromConstructorWithNoMetadataFail()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $internalDetector0 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
-        $internalDetector1 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $internalDetector0 = $this->getMockBuilder(DetectorInterface::class)->getMock();
+        $internalDetector1 = $this->getMockBuilder(DetectorInterface::class)->getMock();
 
         $internalDetector0
             ->expects($this->once())
@@ -40,10 +45,10 @@ public function testAllFromConstructorWithNoMetadataFail()
 
     public function testAllFromConstructorWithMetadataFail()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $metadata = $this->getMock('Dflydev\Canal\Metadata\Metadata');
-        $internalDetector0 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
-        $internalDetector1 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $metadata = $this->getMockBuilder(Metadata::class)->getMock();
+        $internalDetector0 = $this->getMockBuilder(DetectorInterface::class)->getMock();
+        $internalDetector1 = $this->getMockBuilder(DetectorInterface::class)->getMock();
 
         $internalDetector0
             ->expects($this->once())
@@ -64,9 +69,9 @@ public function testAllFromConstructorWithMetadataFail()
 
     public function testAllFromConstructorAndAddWithNoMetadataFail()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $internalDetector0 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
-        $internalDetector1 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $internalDetector0 = $this->getMockBuilder(DetectorInterface::class)->getMock();
+        $internalDetector1 = $this->getMockBuilder(DetectorInterface::class)->getMock();
 
         $internalDetector0
             ->expects($this->once())
@@ -89,10 +94,10 @@ public function testAllFromConstructorAndAddWithNoMetadataFail()
 
     public function testAllFromConstructorAndAddWithMetadataFail()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $metadata = $this->getMock('Dflydev\Canal\Metadata\Metadata');
-        $internalDetector0 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
-        $internalDetector1 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $metadata = $this->getMockBuilder(Metadata::class)->getMock();
+        $internalDetector0 = $this->getMockBuilder(DetectorInterface::class)->getMock();
+        $internalDetector1 = $this->getMockBuilder(DetectorInterface::class)->getMock();
 
         $internalDetector0
             ->expects($this->once())
@@ -115,11 +120,11 @@ public function testAllFromConstructorAndAddWithMetadataFail()
 
     public function testFirstDetectorLocates()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $metadata = $this->getMock('Dflydev\Canal\Metadata\Metadata');
-        $internalDetector0 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
-        $internalDetector1 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
-        $expectedInternetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $metadata = $this->getMockBuilder(Metadata::class)->getMock();
+        $internalDetector0 = $this->getMockBuilder(DetectorInterface::class)->getMock();
+        $internalDetector1 = $this->getMockBuilder(DetectorInterface::class)->getMock();
+        $expectedInternetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
 
         $internalDetector0
             ->expects($this->once())
@@ -145,11 +150,11 @@ public function testFirstDetectorLocates()
 
     public function testLatterDetectorLocates()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
-        $metadata = $this->getMock('Dflydev\Canal\Metadata\Metadata');
-        $internalDetector0 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
-        $internalDetector1 = $this->getMock('Dflydev\Canal\Detector\DetectorInterface');
-        $expectedInternetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
+        $metadata = $this->getMockBuilder(Metadata::class)->getMock();
+        $internalDetector0 = $this->getMockBuilder(DetectorInterface::class)->getMock();
+        $internalDetector1 = $this->getMockBuilder(DetectorInterface::class)->getMock();
+        $expectedInternetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
 
         $internalDetector0
             ->expects($this->once())
diff --git a/tests/Dflydev/Canal/Detector/DefaultDetectorFactoryTest.php b/tests/Dflydev/Canal/Detector/DefaultDetectorFactoryTest.php
index 9ecfeb0..cb6dcb2 100644
--- a/tests/Dflydev/Canal/Detector/DefaultDetectorFactoryTest.php
+++ b/tests/Dflydev/Canal/Detector/DefaultDetectorFactoryTest.php
@@ -2,13 +2,15 @@
 
 namespace Dflydev\Canal\Detector;
 
-class DefaultDetectorFactoryTest extends \PHPUnit_Framework_TestCase
+use PHPUnit\Framework\TestCase;
+
+class DefaultDetectorFactoryTest extends TestCase
 {
     public function testCreate()
     {
         $detector = DefaultDetectorFactory::create();
 
-        $this->assertInstanceOf('Dflydev\Canal\Detector\DetectorInterface', $detector);
-        $this->assertInstanceOf('Dflydev\Canal\Detector\ApacheMimeTypesExtensionDetector', $detector);
+        $this->assertInstanceOf(DetectorInterface::class, $detector);
+        $this->assertInstanceOf(ApacheMimeTypesExtensionDetector::class, $detector);
     }
 }
diff --git a/tests/Dflydev/Canal/InternetMediaType/InternetMediaTypeFactoryTest.php b/tests/Dflydev/Canal/InternetMediaType/InternetMediaTypeFactoryTest.php
index 2a2b4ad..5231b35 100644
--- a/tests/Dflydev/Canal/InternetMediaType/InternetMediaTypeFactoryTest.php
+++ b/tests/Dflydev/Canal/InternetMediaType/InternetMediaTypeFactoryTest.php
@@ -2,29 +2,31 @@
 
 namespace Dflydev\Canal\InternetMediaType;
 
-class InternetMediaTypeFactoryTest extends \PHPUnit_Framework_TestCase
+use PHPUnit\Framework\TestCase;
+
+class InternetMediaTypeFactoryTest extends TestCase
 {
     public function testDefaultConstructor()
     {
-        new InternetMediaTypeFactory;
+        $this->assertInstanceOf(InternetMediaTypeFactory::class, new InternetMediaTypeFactory());
     }
 
     public function testConstructor()
     {
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
 
-        new InternetMediaTypeFactory($internetMediaTypeParser);
+        $this->assertInstanceOf(InternetMediaTypeFactory::class, new InternetMediaTypeFactory($internetMediaTypeParser));
     }
 
     public function testCreateTextPlain()
     {
-        $internetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
         $internetMediaType
             ->expects($this->once())
             ->method('asString')
             ->will($this->returnValue('text/plain'));
 
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
         $internetMediaTypeParser
             ->expects($this->once())
             ->method('parse')
@@ -38,13 +40,13 @@ public function testCreateTextPlain()
 
     public function testCreateTextHtml()
     {
-        $internetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
         $internetMediaType
             ->expects($this->once())
             ->method('asString')
             ->will($this->returnValue('text/html'));
 
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
         $internetMediaTypeParser
             ->expects($this->once())
             ->method('parse')
@@ -58,13 +60,13 @@ public function testCreateTextHtml()
 
     public function testCreateApplicationOctetStream()
     {
-        $internetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
         $internetMediaType
             ->expects($this->once())
             ->method('asString')
             ->will($this->returnValue('application/octet-stream'));
 
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
         $internetMediaTypeParser
             ->expects($this->once())
             ->method('parse')
@@ -78,13 +80,13 @@ public function testCreateApplicationOctetStream()
 
     public function testCreateApplicationXml()
     {
-        $internetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
         $internetMediaType
             ->expects($this->once())
             ->method('asString')
             ->will($this->returnValue('application/xml'));
 
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
         $internetMediaTypeParser
             ->expects($this->once())
             ->method('parse')
@@ -98,13 +100,13 @@ public function testCreateApplicationXml()
 
     public function testCreateApplicationZip()
     {
-        $internetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
         $internetMediaType
             ->expects($this->once())
             ->method('asString')
             ->will($this->returnValue('application/zip'));
 
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
         $internetMediaTypeParser
             ->expects($this->once())
             ->method('parse')
@@ -118,13 +120,13 @@ public function testCreateApplicationZip()
 
     public function testCreateCustomApplication()
     {
-        $internetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
         $internetMediaType
             ->expects($this->once())
             ->method('asString')
             ->will($this->returnValue('application/canal-custom'));
 
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
         $internetMediaTypeParser
             ->expects($this->once())
             ->method('parse')
@@ -138,13 +140,13 @@ public function testCreateCustomApplication()
 
     public function testCreateCustomAudio()
     {
-        $internetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
         $internetMediaType
             ->expects($this->once())
             ->method('asString')
             ->will($this->returnValue('audio/canal-custom'));
 
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
         $internetMediaTypeParser
             ->expects($this->once())
             ->method('parse')
@@ -158,13 +160,13 @@ public function testCreateCustomAudio()
 
     public function testCreateCustomImage()
     {
-        $internetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
         $internetMediaType
             ->expects($this->once())
             ->method('asString')
             ->will($this->returnValue('image/canal-custom'));
 
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
         $internetMediaTypeParser
             ->expects($this->once())
             ->method('parse')
@@ -178,13 +180,13 @@ public function testCreateCustomImage()
 
     public function testCreateCustomText()
     {
-        $internetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
         $internetMediaType
             ->expects($this->once())
             ->method('asString')
             ->will($this->returnValue('text/canal-custom'));
 
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
         $internetMediaTypeParser
             ->expects($this->once())
             ->method('parse')
@@ -198,13 +200,13 @@ public function testCreateCustomText()
 
     public function testCreateCustomVideo()
     {
-        $internetMediaType = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeInterface');
+        $internetMediaType = $this->getMockBuilder(InternetMediaTypeInterface::class)->getMock();
         $internetMediaType
             ->expects($this->once())
             ->method('asString')
             ->will($this->returnValue('video/canal-custom'));
 
-        $internetMediaTypeParser = $this->getMock('Dflydev\Canal\InternetMediaType\InternetMediaTypeParserInterface');
+        $internetMediaTypeParser = $this->getMockBuilder(InternetMediaTypeParserInterface::class)->getMock();
         $internetMediaTypeParser
             ->expects($this->once())
             ->method('parse')
diff --git a/tests/Dflydev/Canal/Metadata/MetadataTest.php b/tests/Dflydev/Canal/Metadata/MetadataTest.php
index 1f1e13a..1784607 100644
--- a/tests/Dflydev/Canal/Metadata/MetadataTest.php
+++ b/tests/Dflydev/Canal/Metadata/MetadataTest.php
@@ -2,7 +2,9 @@
 
 namespace Dflydev\Canal\Metadata;
 
-class MetadataTest extends \PHPUnit_Framework_TestCase
+use PHPUnit\Framework\TestCase;
+
+class MetadataTest extends TestCase
 {
     public function testSingle()
     {