diff --git a/.gitignore b/.gitignore
index 46414c9..e199d46 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 /composer.phar
 /vendor/
 /.idea/
-/tmp/
\ No newline at end of file
+/tmp/
+/.phpunit.result.cache
diff --git a/.travis.yml b/.travis.yml
index 27a6b4e..b5205c1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,25 +1,30 @@
 language: php
 
 php:
-  - 7.1
-  - 7.2
-  - 7.3
-  - 7.4
+  - 8.0
+  - 8.1
+  - 8.2
+  - 8.3
   - nightly
 
 services:
   - redis-server
 
 sudo: false
-dist: trusty
+dist: jammy
 
 matrix:
-  allow_failures:
-    - php: nightly
+  include:
+    - php: 7.2
+      dist: xenial
+    - php: 7.3
+      dist: bionic
+    - php: 7.4
+      dist: focal
 
 before_script:
   - sh -c "if [ $TRAVIS_PHP_VERSION != 'hhvm' ]; then phpenv config-add ./tests/travis/php.ini; fi"
   - composer update
 
 script:
-  - $TRAVIS_BUILD_DIR/vendor/phpunit/phpunit/phpunit
+  - vendor/bin/phpunit
diff --git a/composer.json b/composer.json
index 878ed0c..cb37fc7 100644
--- a/composer.json
+++ b/composer.json
@@ -22,15 +22,15 @@
         }
     },
     "require": {
-        "php": ">=7.1",
+        "php": ">=7.2",
         "matomo/doctrine-cache-fork": "1.10.4"
     },
     "require-dev": {
-        "phpunit/phpunit": "~7.0"
+        "phpunit/phpunit": "^8 || ^9 || ^10 || ^11"
     },
     "config":{
         "platform": {
-            "php": "7.1.0"
+            "php": "7.2.34"
         }
     },
     "repositories": [
diff --git a/composer.lock b/composer.lock
index a44c01b..88b2156 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "54ddd3232468f11ff58df3b4974f8837",
+    "content-hash": "de6fae13e8640607a5f87443b769c521",
     "packages": [
         {
             "name": "matomo/doctrine-cache-fork",
@@ -113,29 +113,30 @@
     "packages-dev": [
         {
             "name": "doctrine/instantiator",
-            "version": "1.4.0",
+            "version": "1.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/instantiator.git",
-                "reference": "d56bf6102915de5702778fe20f2de3b2fe570b5b"
+                "reference": "0a0fa9780f5d4e507415a065172d26a98d02047b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/d56bf6102915de5702778fe20f2de3b2fe570b5b",
-                "reference": "d56bf6102915de5702778fe20f2de3b2fe570b5b",
+                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/0a0fa9780f5d4e507415a065172d26a98d02047b",
+                "reference": "0a0fa9780f5d4e507415a065172d26a98d02047b",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.1 || ^8.0"
             },
             "require-dev": {
-                "doctrine/coding-standard": "^8.0",
+                "doctrine/coding-standard": "^9 || ^11",
                 "ext-pdo": "*",
                 "ext-phar": "*",
-                "phpbench/phpbench": "^0.13 || 1.0.0-alpha2",
-                "phpstan/phpstan": "^0.12",
-                "phpstan/phpstan-phpunit": "^0.12",
-                "phpunit/phpunit": "^7.0 || ^8.0 || ^9.0"
+                "phpbench/phpbench": "^0.16 || ^1",
+                "phpstan/phpstan": "^1.4",
+                "phpstan/phpstan-phpunit": "^1",
+                "phpunit/phpunit": "^7.5 || ^8.5 || ^9.5",
+                "vimeo/psalm": "^4.30 || ^5.4"
             },
             "type": "library",
             "autoload": {
@@ -162,7 +163,7 @@
             ],
             "support": {
                 "issues": "https://github.com/doctrine/instantiator/issues",
-                "source": "https://github.com/doctrine/instantiator/tree/1.4.0"
+                "source": "https://github.com/doctrine/instantiator/tree/1.5.0"
             },
             "funding": [
                 {
@@ -178,41 +179,43 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2020-11-10T18:47:58+00:00"
+            "time": "2022-12-30T00:15:36+00:00"
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.10.2",
+            "version": "1.12.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "776f831124e9c62e1a2c601ecc52e776d8bb7220"
+                "reference": "3a6b9a42cd8f8771bd4295d13e1423fa7f3d942c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/776f831124e9c62e1a2c601ecc52e776d8bb7220",
-                "reference": "776f831124e9c62e1a2c601ecc52e776d8bb7220",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/3a6b9a42cd8f8771bd4295d13e1423fa7f3d942c",
+                "reference": "3a6b9a42cd8f8771bd4295d13e1423fa7f3d942c",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.1 || ^8.0"
             },
-            "replace": {
-                "myclabs/deep-copy": "self.version"
+            "conflict": {
+                "doctrine/collections": "<1.6.8",
+                "doctrine/common": "<2.13.3 || >=3 <3.2.2"
             },
             "require-dev": {
-                "doctrine/collections": "^1.0",
-                "doctrine/common": "^2.6",
-                "phpunit/phpunit": "^7.1"
+                "doctrine/collections": "^1.6.8",
+                "doctrine/common": "^2.13.3 || ^3.2.2",
+                "phpspec/prophecy": "^1.10",
+                "phpunit/phpunit": "^7.5.20 || ^8.5.23 || ^9.5.13"
             },
             "type": "library",
             "autoload": {
-                "psr-4": {
-                    "DeepCopy\\": "src/DeepCopy/"
-                },
                 "files": [
                     "src/DeepCopy/deep_copy.php"
-                ]
+                ],
+                "psr-4": {
+                    "DeepCopy\\": "src/DeepCopy/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -228,7 +231,7 @@
             ],
             "support": {
                 "issues": "https://github.com/myclabs/DeepCopy/issues",
-                "source": "https://github.com/myclabs/DeepCopy/tree/1.10.2"
+                "source": "https://github.com/myclabs/DeepCopy/tree/1.12.0"
             },
             "funding": [
                 {
@@ -236,32 +239,34 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2020-11-13T09:40:50+00:00"
+            "time": "2024-06-12T14:39:25+00:00"
         },
         {
             "name": "phar-io/manifest",
-            "version": "1.0.3",
+            "version": "2.0.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phar-io/manifest.git",
-                "reference": "7761fcacf03b4d4f16e7ccb606d4879ca431fcf4"
+                "reference": "54750ef60c58e43759730615a392c31c80e23176"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phar-io/manifest/zipball/7761fcacf03b4d4f16e7ccb606d4879ca431fcf4",
-                "reference": "7761fcacf03b4d4f16e7ccb606d4879ca431fcf4",
+                "url": "https://api.github.com/repos/phar-io/manifest/zipball/54750ef60c58e43759730615a392c31c80e23176",
+                "reference": "54750ef60c58e43759730615a392c31c80e23176",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
+                "ext-libxml": "*",
                 "ext-phar": "*",
-                "phar-io/version": "^2.0",
-                "php": "^5.6 || ^7.0"
+                "ext-xmlwriter": "*",
+                "phar-io/version": "^3.0.1",
+                "php": "^7.2 || ^8.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -293,26 +298,32 @@
             "description": "Component for reading phar.io manifest information from a PHP Archive (PHAR)",
             "support": {
                 "issues": "https://github.com/phar-io/manifest/issues",
-                "source": "https://github.com/phar-io/manifest/tree/master"
+                "source": "https://github.com/phar-io/manifest/tree/2.0.4"
             },
-            "time": "2018-07-08T19:23:20+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/theseer",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-03T12:33:53+00:00"
         },
         {
             "name": "phar-io/version",
-            "version": "2.0.1",
+            "version": "3.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phar-io/version.git",
-                "reference": "45a2ec53a73c70ce41d55cedef9063630abaf1b6"
+                "reference": "4f7fd7836c6f332bb2933569e566a0d6c4cbed74"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phar-io/version/zipball/45a2ec53a73c70ce41d55cedef9063630abaf1b6",
-                "reference": "45a2ec53a73c70ce41d55cedef9063630abaf1b6",
+                "url": "https://api.github.com/repos/phar-io/version/zipball/4f7fd7836c6f332bb2933569e566a0d6c4cbed74",
+                "reference": "4f7fd7836c6f332bb2933569e566a0d6c4cbed74",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6 || ^7.0"
+                "php": "^7.2 || ^8.0"
             },
             "type": "library",
             "autoload": {
@@ -344,273 +355,46 @@
             "description": "Library for handling version information and constraints",
             "support": {
                 "issues": "https://github.com/phar-io/version/issues",
-                "source": "https://github.com/phar-io/version/tree/master"
-            },
-            "time": "2018-07-08T19:19:57+00:00"
-        },
-        {
-            "name": "phpdocumentor/reflection-common",
-            "version": "2.1.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpDocumentor/ReflectionCommon.git",
-                "reference": "6568f4687e5b41b054365f9ae03fcb1ed5f2069b"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/6568f4687e5b41b054365f9ae03fcb1ed5f2069b",
-                "reference": "6568f4687e5b41b054365f9ae03fcb1ed5f2069b",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=7.1"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "2.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "phpDocumentor\\Reflection\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Jaap van Otterdijk",
-                    "email": "opensource@ijaap.nl"
-                }
-            ],
-            "description": "Common reflection classes used by phpdocumentor to reflect the code structure",
-            "homepage": "http://www.phpdoc.org",
-            "keywords": [
-                "FQSEN",
-                "phpDocumentor",
-                "phpdoc",
-                "reflection",
-                "static analysis"
-            ],
-            "support": {
-                "issues": "https://github.com/phpDocumentor/ReflectionCommon/issues",
-                "source": "https://github.com/phpDocumentor/ReflectionCommon/tree/master"
-            },
-            "time": "2020-04-27T09:25:28+00:00"
-        },
-        {
-            "name": "phpdocumentor/reflection-docblock",
-            "version": "4.3.4",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
-                "reference": "da3fd972d6bafd628114f7e7e036f45944b62e9c"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/da3fd972d6bafd628114f7e7e036f45944b62e9c",
-                "reference": "da3fd972d6bafd628114f7e7e036f45944b62e9c",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^7.0",
-                "phpdocumentor/reflection-common": "^1.0.0 || ^2.0.0",
-                "phpdocumentor/type-resolver": "~0.4 || ^1.0.0",
-                "webmozart/assert": "^1.0"
-            },
-            "require-dev": {
-                "doctrine/instantiator": "^1.0.5",
-                "mockery/mockery": "^1.0",
-                "phpdocumentor/type-resolver": "0.4.*",
-                "phpunit/phpunit": "^6.4"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "4.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src/"
-                    ]
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Mike van Riel",
-                    "email": "me@mikevanriel.com"
-                }
-            ],
-            "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "support": {
-                "issues": "https://github.com/phpDocumentor/ReflectionDocBlock/issues",
-                "source": "https://github.com/phpDocumentor/ReflectionDocBlock/tree/release/4.x"
-            },
-            "time": "2019-12-28T18:55:12+00:00"
-        },
-        {
-            "name": "phpdocumentor/type-resolver",
-            "version": "1.0.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpDocumentor/TypeResolver.git",
-                "reference": "2e32a6d48972b2c1976ed5d8967145b6cec4a4a9"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/TypeResolver/zipball/2e32a6d48972b2c1976ed5d8967145b6cec4a4a9",
-                "reference": "2e32a6d48972b2c1976ed5d8967145b6cec4a4a9",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^7.1",
-                "phpdocumentor/reflection-common": "^2.0"
-            },
-            "require-dev": {
-                "ext-tokenizer": "^7.1",
-                "mockery/mockery": "~1",
-                "phpunit/phpunit": "^7.0"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "phpDocumentor\\Reflection\\": "src"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Mike van Riel",
-                    "email": "me@mikevanriel.com"
-                }
-            ],
-            "description": "A PSR-5 based resolver of Class names, Types and Structural Element Names",
-            "support": {
-                "issues": "https://github.com/phpDocumentor/TypeResolver/issues",
-                "source": "https://github.com/phpDocumentor/TypeResolver/tree/0.7.2"
-            },
-            "time": "2019-08-22T18:11:29+00:00"
-        },
-        {
-            "name": "phpspec/prophecy",
-            "version": "v1.10.3",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "451c3cd1418cf640de218914901e51b064abb093"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/451c3cd1418cf640de218914901e51b064abb093",
-                "reference": "451c3cd1418cf640de218914901e51b064abb093",
-                "shasum": ""
-            },
-            "require": {
-                "doctrine/instantiator": "^1.0.2",
-                "php": "^5.3|^7.0",
-                "phpdocumentor/reflection-docblock": "^2.0|^3.0.2|^4.0|^5.0",
-                "sebastian/comparator": "^1.2.3|^2.0|^3.0|^4.0",
-                "sebastian/recursion-context": "^1.0|^2.0|^3.0|^4.0"
-            },
-            "require-dev": {
-                "phpspec/phpspec": "^2.5 || ^3.2",
-                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5 || ^7.1"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.10.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Prophecy\\": "src/Prophecy"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Konstantin Kudryashov",
-                    "email": "ever.zet@gmail.com",
-                    "homepage": "http://everzet.com"
-                },
-                {
-                    "name": "Marcello Duarte",
-                    "email": "marcello.duarte@gmail.com"
-                }
-            ],
-            "description": "Highly opinionated mocking framework for PHP 5.3+",
-            "homepage": "https://github.com/phpspec/prophecy",
-            "keywords": [
-                "Double",
-                "Dummy",
-                "fake",
-                "mock",
-                "spy",
-                "stub"
-            ],
-            "support": {
-                "issues": "https://github.com/phpspec/prophecy/issues",
-                "source": "https://github.com/phpspec/prophecy/tree/v1.10.3"
+                "source": "https://github.com/phar-io/version/tree/3.2.1"
             },
-            "time": "2020-03-05T15:02:03+00:00"
+            "time": "2022-02-21T01:04:05+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "6.1.4",
+            "version": "7.0.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "807e6013b00af69b6c5d9ceb4282d0393dbb9d8d"
+                "reference": "40a4ed114a4aea5afd6df8d0f0c9cd3033097f66"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/807e6013b00af69b6c5d9ceb4282d0393dbb9d8d",
-                "reference": "807e6013b00af69b6c5d9ceb4282d0393dbb9d8d",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/40a4ed114a4aea5afd6df8d0f0c9cd3033097f66",
+                "reference": "40a4ed114a4aea5afd6df8d0f0c9cd3033097f66",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
                 "ext-xmlwriter": "*",
-                "php": "^7.1",
-                "phpunit/php-file-iterator": "^2.0",
+                "php": ">=7.2",
+                "phpunit/php-file-iterator": "^2.0.2",
                 "phpunit/php-text-template": "^1.2.1",
-                "phpunit/php-token-stream": "^3.0",
+                "phpunit/php-token-stream": "^3.1.3 || ^4.0",
                 "sebastian/code-unit-reverse-lookup": "^1.0.1",
-                "sebastian/environment": "^3.1 || ^4.0",
+                "sebastian/environment": "^4.2.2",
                 "sebastian/version": "^2.0.1",
-                "theseer/tokenizer": "^1.1"
+                "theseer/tokenizer": "^1.1.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "^7.0"
+                "phpunit/phpunit": "^8.2.2"
             },
             "suggest": {
-                "ext-xdebug": "^2.6.0"
+                "ext-xdebug": "^2.7.2"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "6.1-dev"
+                    "dev-master": "7.0-dev"
                 }
             },
             "autoload": {
@@ -638,29 +422,35 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/php-code-coverage/issues",
-                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/master"
+                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/7.0.17"
             },
-            "time": "2018-10-31T16:06:48+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-02T06:09:37+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
-            "version": "2.0.2",
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                 "issues": "https://github.com/sebastianbergmann/global-state/issues",
-                "source": "https://github.com/sebastianbergmann/global-state/tree/2.0.0"
+                "source": "https://github.com/sebastianbergmann/global-state/tree/3.0.5"
             },
-            "time": "2017-04-27T15:39:26+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-02T06:13:16+00:00"
         },
         {
             "name": "sebastian/object-enumerator",
-            "version": "3.0.3",
+            "version": "3.0.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/object-enumerator.git",
-                "reference": "7cfd9e65d11ffb5af41198476395774d4c8a84c5"
+                "reference": "ac5b293dba925751b808e02923399fb44ff0d541"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/7cfd9e65d11ffb5af41198476395774d4c8a84c5",
-                "reference": "7cfd9e65d11ffb5af41198476395774d4c8a84c5",
+                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/ac5b293dba925751b808e02923399fb44ff0d541",
+                "reference": "ac5b293dba925751b808e02923399fb44ff0d541",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0",
+                "php": ">=7.0",
                 "sebastian/object-reflector": "^1.1.1",
                 "sebastian/recursion-context": "^3.0"
             },
@@ -1343,26 +1200,32 @@
             "homepage": "https://github.com/sebastianbergmann/object-enumerator/",
             "support": {
                 "issues": "https://github.com/sebastianbergmann/object-enumerator/issues",
-                "source": "https://github.com/sebastianbergmann/object-enumerator/tree/master"
+                "source": "https://github.com/sebastianbergmann/object-enumerator/tree/3.0.5"
             },
-            "time": "2017-08-03T12:35:26+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-01T13:54:02+00:00"
         },
         {
             "name": "sebastian/object-reflector",
-            "version": "1.1.1",
+            "version": "1.1.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/object-reflector.git",
-                "reference": "773f97c67f28de00d397be301821b06708fca0be"
+                "reference": "1d439c229e61f244ff1f211e5c99737f90c67def"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/object-reflector/zipball/773f97c67f28de00d397be301821b06708fca0be",
-                "reference": "773f97c67f28de00d397be301821b06708fca0be",
+                "url": "https://api.github.com/repos/sebastianbergmann/object-reflector/zipball/1d439c229e61f244ff1f211e5c99737f90c67def",
+                "reference": "1d439c229e61f244ff1f211e5c99737f90c67def",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0"
+                "php": ">=7.0"
             },
             "require-dev": {
                 "phpunit/phpunit": "^6.0"
@@ -1392,26 +1255,32 @@
             "homepage": "https://github.com/sebastianbergmann/object-reflector/",
             "support": {
                 "issues": "https://github.com/sebastianbergmann/object-reflector/issues",
-                "source": "https://github.com/sebastianbergmann/object-reflector/tree/master"
+                "source": "https://github.com/sebastianbergmann/object-reflector/tree/1.1.3"
             },
-            "time": "2017-03-29T09:07:27+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-01T13:56:04+00:00"
         },
         {
             "name": "sebastian/recursion-context",
-            "version": "3.0.0",
+            "version": "3.0.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/recursion-context.git",
-                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8"
+                "reference": "9bfd3c6f1f08c026f542032dfb42813544f7d64c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
-                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
+                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/9bfd3c6f1f08c026f542032dfb42813544f7d64c",
+                "reference": "9bfd3c6f1f08c026f542032dfb42813544f7d64c",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0"
+                "php": ">=7.0"
             },
             "require-dev": {
                 "phpunit/phpunit": "^6.0"
@@ -1432,14 +1301,14 @@
                 "BSD-3-Clause"
             ],
             "authors": [
-                {
-                    "name": "Jeff Welch",
-                    "email": "whatthejeff@gmail.com"
-                },
                 {
                     "name": "Sebastian Bergmann",
                     "email": "sebastian@phpunit.de"
                 },
+                {
+                    "name": "Jeff Welch",
+                    "email": "whatthejeff@gmail.com"
+                },
                 {
                     "name": "Adam Harvey",
                     "email": "aharvey@php.net"
@@ -1449,26 +1318,32 @@
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
             "support": {
                 "issues": "https://github.com/sebastianbergmann/recursion-context/issues",
-                "source": "https://github.com/sebastianbergmann/recursion-context/tree/master"
+                "source": "https://github.com/sebastianbergmann/recursion-context/tree/3.0.2"
             },
-            "time": "2017-03-03T06:23:57+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-01T14:07:30+00:00"
         },
         {
             "name": "sebastian/resource-operations",
-            "version": "2.0.1",
+            "version": "2.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/resource-operations.git",
-                "reference": "4d7a795d35b889bf80a0cc04e08d77cedfa917a9"
+                "reference": "72a7f7674d053d548003b16ff5a106e7e0e06eee"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/resource-operations/zipball/4d7a795d35b889bf80a0cc04e08d77cedfa917a9",
-                "reference": "4d7a795d35b889bf80a0cc04e08d77cedfa917a9",
+                "url": "https://api.github.com/repos/sebastianbergmann/resource-operations/zipball/72a7f7674d053d548003b16ff5a106e7e0e06eee",
+                "reference": "72a7f7674d053d548003b16ff5a106e7e0e06eee",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1"
+                "php": ">=7.1"
             },
             "type": "library",
             "extra": {
@@ -1494,32 +1369,40 @@
             "description": "Provides a list of PHP built-in functions that operate on resources",
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
             "support": {
-                "issues": "https://github.com/sebastianbergmann/resource-operations/issues",
-                "source": "https://github.com/sebastianbergmann/resource-operations/tree/master"
+                "source": "https://github.com/sebastianbergmann/resource-operations/tree/2.0.3"
             },
-            "time": "2018-10-04T04:07:39+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-01T13:59:09+00:00"
         },
         {
-            "name": "sebastian/version",
-            "version": "2.0.1",
+            "name": "sebastian/type",
+            "version": "1.1.5",
             "source": {
                 "type": "git",
-                "url": "https://github.com/sebastianbergmann/version.git",
-                "reference": "99732be0ddb3361e16ad77b68ba41efc8e979019"
+                "url": "https://github.com/sebastianbergmann/type.git",
+                "reference": "18f071c3a29892b037d35e6b20ddf3ea39b42874"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/version/zipball/99732be0ddb3361e16ad77b68ba41efc8e979019",
-                "reference": "99732be0ddb3361e16ad77b68ba41efc8e979019",
+                "url": "https://api.github.com/repos/sebastianbergmann/type/zipball/18f071c3a29892b037d35e6b20ddf3ea39b42874",
+                "reference": "18f071c3a29892b037d35e6b20ddf3ea39b42874",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.6"
+                "php": ">=7.2"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^8.2"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "1.1-dev"
                 }
             },
             "autoload": {
@@ -1538,112 +1421,86 @@
                     "role": "lead"
                 }
             ],
-            "description": "Library that helps with managing the version number of Git-hosted PHP projects",
-            "homepage": "https://github.com/sebastianbergmann/version",
+            "description": "Collection of value objects that represent the types of the PHP type system",
+            "homepage": "https://github.com/sebastianbergmann/type",
             "support": {
-                "issues": "https://github.com/sebastianbergmann/version/issues",
-                "source": "https://github.com/sebastianbergmann/version/tree/master"
+                "issues": "https://github.com/sebastianbergmann/type/issues",
+                "source": "https://github.com/sebastianbergmann/type/tree/1.1.5"
             },
-            "time": "2016-10-03T07:35:21+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-01T14:04:07+00:00"
         },
         {
-            "name": "symfony/polyfill-ctype",
-            "version": "v1.20.0",
+            "name": "sebastian/version",
+            "version": "2.0.1",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/polyfill-ctype.git",
-                "reference": "f4ba089a5b6366e453971d3aad5fe8e897b37f41"
+                "url": "https://github.com/sebastianbergmann/version.git",
+                "reference": "99732be0ddb3361e16ad77b68ba41efc8e979019"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/f4ba089a5b6366e453971d3aad5fe8e897b37f41",
-                "reference": "f4ba089a5b6366e453971d3aad5fe8e897b37f41",
+                "url": "https://api.github.com/repos/sebastianbergmann/version/zipball/99732be0ddb3361e16ad77b68ba41efc8e979019",
+                "reference": "99732be0ddb3361e16ad77b68ba41efc8e979019",
                 "shasum": ""
             },
             "require": {
-                "php": ">=7.1"
-            },
-            "suggest": {
-                "ext-ctype": "For best performance"
+                "php": ">=5.6"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-main": "1.20-dev"
-                },
-                "thanks": {
-                    "name": "symfony/polyfill",
-                    "url": "https://github.com/symfony/polyfill"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Polyfill\\Ctype\\": ""
-                },
-                "files": [
-                    "bootstrap.php"
+                "classmap": [
+                    "src/"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "MIT"
+                "BSD-3-Clause"
             ],
             "authors": [
                 {
-                    "name": "Gert de Pagter",
-                    "email": "BackEndTea@gmail.com"
-                },
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de",
+                    "role": "lead"
                 }
             ],
-            "description": "Symfony polyfill for ctype functions",
-            "homepage": "https://symfony.com",
-            "keywords": [
-                "compatibility",
-                "ctype",
-                "polyfill",
-                "portable"
-            ],
+            "description": "Library that helps with managing the version number of Git-hosted PHP projects",
+            "homepage": "https://github.com/sebastianbergmann/version",
             "support": {
-                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.20.0"
+                "issues": "https://github.com/sebastianbergmann/version/issues",
+                "source": "https://github.com/sebastianbergmann/version/tree/master"
             },
-            "funding": [
-                {
-                    "url": "https://symfony.com/sponsor",
-                    "type": "custom"
-                },
-                {
-                    "url": "https://github.com/fabpot",
-                    "type": "github"
-                },
-                {
-                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
-                    "type": "tidelift"
-                }
-            ],
-            "time": "2020-10-23T14:02:19+00:00"
+            "time": "2016-10-03T07:35:21+00:00"
         },
         {
             "name": "theseer/tokenizer",
-            "version": "1.1.3",
+            "version": "1.2.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/theseer/tokenizer.git",
-                "reference": "11336f6f84e16a720dae9d8e6ed5019efa85a0f9"
+                "reference": "737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/11336f6f84e16a720dae9d8e6ed5019efa85a0f9",
-                "reference": "11336f6f84e16a720dae9d8e6ed5019efa85a0f9",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2",
+                "reference": "737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
                 "ext-tokenizer": "*",
                 "ext-xmlwriter": "*",
-                "php": "^7.0"
+                "php": "^7.2 || ^8.0"
             },
             "type": "library",
             "autoload": {
@@ -1665,62 +1522,15 @@
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
             "support": {
                 "issues": "https://github.com/theseer/tokenizer/issues",
-                "source": "https://github.com/theseer/tokenizer/tree/master"
-            },
-            "time": "2019-06-13T22:48:21+00:00"
-        },
-        {
-            "name": "webmozart/assert",
-            "version": "1.9.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/webmozart/assert.git",
-                "reference": "bafc69caeb4d49c39fd0779086c03a3738cbb389"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/bafc69caeb4d49c39fd0779086c03a3738cbb389",
-                "reference": "bafc69caeb4d49c39fd0779086c03a3738cbb389",
-                "shasum": ""
+                "source": "https://github.com/theseer/tokenizer/tree/1.2.3"
             },
-            "require": {
-                "php": "^5.3.3 || ^7.0 || ^8.0",
-                "symfony/polyfill-ctype": "^1.8"
-            },
-            "conflict": {
-                "phpstan/phpstan": "<0.12.20",
-                "vimeo/psalm": "<3.9.1"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^4.8.36 || ^7.5.13"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "Webmozart\\Assert\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
+            "funding": [
                 {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@gmail.com"
+                    "url": "https://github.com/theseer",
+                    "type": "github"
                 }
             ],
-            "description": "Assertions to validate method input/output with nice error messages.",
-            "keywords": [
-                "assert",
-                "check",
-                "validate"
-            ],
-            "support": {
-                "issues": "https://github.com/webmozart/assert/issues",
-                "source": "https://github.com/webmozart/assert/tree/master"
-            },
-            "time": "2020-07-08T17:02:28+00:00"
+            "time": "2024-03-03T12:36:25+00:00"
         }
     ],
     "aliases": [],
@@ -1729,11 +1539,11 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=7.1"
+        "php": ">=7.2"
     },
     "platform-dev": [],
     "platform-overrides": {
-        "php": "7.1.0"
+        "php": "7.2.34"
     },
-    "plugin-api-version": "2.0.0"
+    "plugin-api-version": "2.3.0"
 }
diff --git a/phpunit.xml b/phpunit.xml
index cda26b9..ef05c26 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -7,7 +7,6 @@
          convertWarningsToExceptions="true"
          processIsolation="false"
          stopOnFailure="false"
-         syntaxCheck="false"
          bootstrap="./vendor/autoload.php">
 
     <testsuites>
@@ -16,4 +15,4 @@
         </testsuite>
     </testsuites>
 
-</phpunit>
\ No newline at end of file
+</phpunit>
diff --git a/tests/Backend/ChainedTest.php b/tests/Backend/ChainedTest.php
index 9d3f4d5..94efaed 100644
--- a/tests/Backend/ChainedTest.php
+++ b/tests/Backend/ChainedTest.php
@@ -16,6 +16,7 @@
 /**
  * @covers \Matomo\Cache\Backend\Chained
  */
+#[\PHPUnit\Framework\Attributes\CoversClass(Chained::class)]
 class ChainedTest extends TestCase
 {
 
diff --git a/tests/Backend/DefaultTimeoutTest.php b/tests/Backend/DefaultTimeoutTest.php
index c2f086a..97028d4 100644
--- a/tests/Backend/DefaultTimeoutTest.php
+++ b/tests/Backend/DefaultTimeoutTest.php
@@ -15,6 +15,7 @@
 /**
  * @covers \Matomo\Cache\Backend\DefaultTimeoutDecorated
  */
+#[\PHPUnit\Framework\Attributes\CoversClass(DefaultTimeoutDecorated::class)]
 class DefaultTimeoutTest extends TestCase
 {
     /**
@@ -30,7 +31,7 @@ class DefaultTimeoutTest extends TestCase
 
     private $defaultTTl = 555;
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->backendMock = $this->getMockBuilder(NullCache::class)->getMock();
 
@@ -50,4 +51,4 @@ public function test_doSave_shouldCallDecoratedWithDefaultTTL()
 
         $this->cache->doSave('randomid', 'anyvalue');
     }
-}
\ No newline at end of file
+}
diff --git a/tests/Backend/FactoryTest.php b/tests/Backend/FactoryTest.php
index 311dc38..d56bfb4 100644
--- a/tests/Backend/FactoryTest.php
+++ b/tests/Backend/FactoryTest.php
@@ -21,6 +21,7 @@
 /**
  * @covers \Matomo\Cache\Backend\Factory
  */
+#[\PHPUnit\Framework\Attributes\CoversClass(Factory::class)]
 class FactoryTest extends TestCase
 {
     /**
@@ -28,7 +29,7 @@ class FactoryTest extends TestCase
      */
     private $factory;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->factory = new Factory();
     }
@@ -108,21 +109,19 @@ public function test_buildBackend_Redis_ShouldForwardOptionsToRedisInstance()
         $this->assertEquals(5, $redis->getDBNum());
     }
 
-    /**
-     * @expectedException \InvalidArgumentException
-     * @expectedExceptionMessage RedisCache is not configured
-     */
     public function test_buildRedisCache_ShouldFail_IfPortIsMissing()
     {
+        $this->expectException(\InvalidArgumentException::class);
+        $this->expectExceptionMessage('RedisCache is not configured');
+
         $this->factory->buildRedisCache(array('host' => '127.0.0.1'));
     }
 
-    /**
-     * @expectedException \InvalidArgumentException
-     * @expectedExceptionMessage RedisCache is not configured
-     */
     public function test_buildRedisCache_ShouldFail_IfHostIsMissing()
     {
+        $this->expectException(\InvalidArgumentException::class);
+        $this->expectExceptionMessage('RedisCache is not configured');
+
         $this->factory->buildRedisCache(array('port' => '6379'));
     }
 
@@ -150,11 +149,10 @@ public function test_buildBackend_Chained_ShouldReturnInstanceOfChained()
         $this->assertInstanceOf(Chained::class, $cache);
     }
 
-    /**
-     * @expectedException \Matomo\Cache\Backend\Factory\BackendNotFoundException
-     */
     public function test_buildBackend_ShouldThrowException_IfInvalidTypeGiven()
     {
+        $this->expectException(\Matomo\Cache\Backend\Factory\BackendNotFoundException::class);
+
         $this->factory->buildBackend('noTValId', array());
     }
 
diff --git a/tests/Backend/FileTest.php b/tests/Backend/FileTest.php
index 8c5af48..074a816 100644
--- a/tests/Backend/FileTest.php
+++ b/tests/Backend/FileTest.php
@@ -14,6 +14,7 @@
 /**
  * @covers \Matomo\Cache\Backend\File
  */
+#[\PHPUnit\Framework\Attributes\CoversClass(File::class)]
 class FileTest extends TestCase
 {
     /**
@@ -23,25 +24,25 @@ class FileTest extends TestCase
 
     private $cacheId = 'testid';
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->cache = $this->createFileCache();
         $this->cache->doSave($this->cacheId, 'anyvalue', 100);
     }
 
-    protected function tearDown()
+    protected function tearDown(): void
     {
         $this->cache->flushAll();
     }
 
     private function createFileCache($namespace = '')
     {
-        $path = $this->getPath($namespace);
+        $path = self::getPath($namespace);
 
         return new File($path);
     }
 
-    private function getPath($namespace = '', $id = '')
+    private static function getPath($namespace = '', $id = '')
     {
         $path = __DIR__ . '/../tmp';
 
@@ -63,7 +64,7 @@ public function test_doSave_shouldCreateDirectoryWith750Permission_IfWritingInto
         $file = $this->createFileCache($namespace);
         $file->doSave('myidtest', 'myvalue');
 
-        $this->assertDirectoryExists($this->getPath($namespace));
+        $this->assertDirectoryExists(self::getPath($namespace));
         $file->flushAll();
     }
 
@@ -71,14 +72,14 @@ public function test_doSave_shouldCreateFile()
     {
         $this->cache->doSave('myidtest', 'myvalue');
 
-        $this->assertFileExists($this->getPath('', 'myidtest'));
+        $this->assertFileExists(self::getPath('', 'myidtest'));
     }
 
     public function test_doSave_shouldSetLifeTime()
     {
         $this->cache->doSave('myidtest', 'myvalue', 500);
 
-        $path =  $this->getPath('', 'myidtest');
+        $path =  self::getPath('', 'myidtest');
 
         $contents = include $path;
 
@@ -98,14 +99,15 @@ public function test_doFetch_ParseError()
     /**
      * @dataProvider getTestDataForGetFilename
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getTestDataForGetFilename')]
     public function test_getFilename_shouldConstructFilenameFromId($id, $expectedFilename)
     {
         $this->assertEquals($expectedFilename, $this->cache->getFilename($id));
     }
 
-    public function getTestDataForGetFilename()
+    public static function getTestDataForGetFilename()
     {
-        $dir = realpath($this->getPath());
+        $dir = realpath(self::getPath());
 
         return [
             ['genericid', $dir . '/genericid.php'],
diff --git a/tests/Backend/KeyPrefixTest.php b/tests/Backend/KeyPrefixTest.php
index ba66d5d..3e4ef08 100644
--- a/tests/Backend/KeyPrefixTest.php
+++ b/tests/Backend/KeyPrefixTest.php
@@ -15,6 +15,7 @@
 /**
  * @covers \Matomo\Cache\Backend\KeyPrefixDecorated
  */
+#[\PHPUnit\Framework\Attributes\CoversClass(KeyPrefixDecorated::class)]
 class KeyPrefixTest extends TestCase
 {
     /**
@@ -30,7 +31,7 @@ class KeyPrefixTest extends TestCase
 
     private $keyPrefix = 'somePrefix';
 
-    public function setUp()
+    public function setUp(): void
     {
         $this->backendMock = $this->getMockBuilder(NullCache::class)->getMock();
 
@@ -81,4 +82,4 @@ public function test_doDelete_shouldCallDecoratedWithKeyPrefix()
 
         $this->cache->doDelete('randomid');
     }
-}
\ No newline at end of file
+}
diff --git a/tests/Backend/NullCacheTest.php b/tests/Backend/NullCacheTest.php
index 3246519..1905053 100644
--- a/tests/Backend/NullCacheTest.php
+++ b/tests/Backend/NullCacheTest.php
@@ -14,6 +14,7 @@
 /**
  * @covers \Matomo\Cache\Backend\NullCache
  */
+#[\PHPUnit\Framework\Attributes\CoversClass(NullCache::class)]
 class NullCacheTest extends TestCase
 {
     /**
@@ -23,7 +24,7 @@ class NullCacheTest extends TestCase
 
     private $cacheId = 'testid';
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->cache = new NullCache();
         $this->cache->doSave($this->cacheId, 'anyvalue', 100);
diff --git a/tests/BackendTest.php b/tests/BackendTest.php
index 6a9e8c9..df73260 100644
--- a/tests/BackendTest.php
+++ b/tests/BackendTest.php
@@ -23,7 +23,7 @@ class BackendTest extends TestCase
 
     private static $backends = array();
 
-    protected function setUp()
+    protected function setUp(): void
     {
         foreach (self::$backends as $backend) {
             /** @var Backend[] $backend */
@@ -33,7 +33,7 @@ protected function setUp()
         }
     }
 
-    public static function tearDownAfterClass()
+    public static function tearDownAfterClass(): void
     {
         foreach (self::$backends as $backend) {
             /** @var Backend[] $backend */
@@ -46,6 +46,7 @@ public static function tearDownAfterClass()
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doFetch_shouldReturnFalse_IfNoSuchCacheIdExists(Backend $backend)
     {
         $this->assertFalse($backend->doFetch('randomid'));
@@ -54,6 +55,7 @@ public function test_doFetch_shouldReturnFalse_IfNoSuchCacheIdExists(Backend $ba
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doFetch_shouldReturnTheCachedValue_IfCacheIdExists(Backend $backend)
     {
         $this->assertEquals($this->cacheValue, $backend->doFetch($this->cacheId));
@@ -62,6 +64,7 @@ public function test_doFetch_shouldReturnTheCachedValue_IfCacheIdExists(Backend
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doContains_shouldReturnFalse_IfNoSuchCacheIdExists(Backend $backend)
     {
         $this->assertFalse($backend->doContains('randomid'));
@@ -70,6 +73,7 @@ public function test_doContains_shouldReturnFalse_IfNoSuchCacheIdExists(Backend
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doContains_shouldReturnTrue_IfCacheIdExists(Backend $backend)
     {
         $this->assertTrue($backend->doContains($this->cacheId));
@@ -78,6 +82,7 @@ public function test_doContains_shouldReturnTrue_IfCacheIdExists(Backend $backen
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doDelete_shouldReturnTrue_OnSuccess(Backend $backend)
     {
         $this->assertTrue($backend->doDelete($this->cacheId));
@@ -86,6 +91,7 @@ public function test_doDelete_shouldReturnTrue_OnSuccess(Backend $backend)
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doDelete_shouldActuallyDeleteCacheId(Backend $backend)
     {
         $this->assertHasCacheEntry($backend, $this->cacheId);
@@ -98,6 +104,7 @@ public function test_doDelete_shouldActuallyDeleteCacheId(Backend $backend)
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doDelete_shouldNotDeleteAnyOtherCacheIds(Backend $backend)
     {
         $backend->doSave('anyother', 'myvalue');
@@ -111,6 +118,7 @@ public function test_doDelete_shouldNotDeleteAnyOtherCacheIds(Backend $backend)
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doDelete_shouldNotFail_IfCacheEntryDoesNotExist(Backend $backend)
     {
         $success = $backend->doDelete('anYRandoOmId');
@@ -121,6 +129,7 @@ public function test_doDelete_shouldNotFail_IfCacheEntryDoesNotExist(Backend $ba
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doSave_shouldOverwriteAnyValue_IfCacheIdAlreadyExists(Backend $backend)
     {
         $this->assertHasCacheEntry($backend, $this->cacheId);
@@ -134,6 +143,7 @@ public function test_doSave_shouldOverwriteAnyValue_IfCacheIdAlreadyExists(Backe
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doSave_shouldBeAbleToSetArrays(Backend $backend)
     {
         $value = array('anyotherE' => 'anyOtherValUE', 1 => array(2));
@@ -145,6 +155,7 @@ public function test_doSave_shouldBeAbleToSetArrays(Backend $backend)
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doSave_shouldBeAbleToSetNumbers(Backend $backend)
     {
         $value = 5.4;
@@ -156,6 +167,7 @@ public function test_doSave_shouldBeAbleToSetNumbers(Backend $backend)
     /**
      * @dataProvider getBackends
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getBackends')]
     public function test_doFlush_shouldRemoveAllCacheIds(Backend $backend)
     {
         $this->assertHasCacheEntry($backend, $this->cacheId);
@@ -168,7 +180,7 @@ public function test_doFlush_shouldRemoveAllCacheIds(Backend $backend)
         $this->assertHasNotCacheEntry($backend, 'mykey');
     }
 
-    public function getBackends()
+    public static function getBackends()
     {
         if (!empty(self::$backends)) {
             return self::$backends;
@@ -178,9 +190,9 @@ public function getBackends()
         $backends = array();
 
         $arrayCache = new ArrayCache();
-        $fileCache  = new File($this->getPathToCacheDir());
+        $fileCache  = new File(self::getPathToCacheDir());
 
-        $chainedFileCache = new File( $this->getPathToCacheDir() . '/chain' );
+        $chainedFileCache = new File( self::getPathToCacheDir() . '/chain' );
         $chainCache = new Chained( array(new ArrayCache(), $chainedFileCache) );
 
         $timeoutDecorated = new Backend\DefaultTimeoutDecorated( new ArrayCache(), ['defaultTimeout' => 8866] );
@@ -204,7 +216,7 @@ public function getBackends()
         return self::$backends;
     }
 
-    private function getPathToCacheDir()
+    private static function getPathToCacheDir()
     {
         return __DIR__ . '/tmp';
     }
diff --git a/tests/EagerTest.php b/tests/EagerTest.php
index 86d2653..7f7616b 100644
--- a/tests/EagerTest.php
+++ b/tests/EagerTest.php
@@ -16,6 +16,7 @@
 /**
  * @covers \Matomo\Cache\Eager
  */
+#[\PHPUnit\Framework\Attributes\CoversClass(Eager::class)]
 class EagerTest extends TestCase
 {
     /**
@@ -32,7 +33,7 @@ class EagerTest extends TestCase
     private $cacheId    = 'testid';
     private $cacheValue = 'exampleValue';
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->backend = new ArrayCache();
         $this->backend->doSave($this->storageId, array($this->cacheId => $this->cacheValue));
@@ -73,12 +74,11 @@ public function test_save_shouldBeAbleToSetArrays()
         $this->assertSame($value, $this->cache->fetch($this->cacheId));
     }
 
-    /**
-     * @expectedException \InvalidArgumentException
-     * @expectedExceptionMessage cannot use this cache to cache an object
-     */
     public function test_save_shouldFail_IfTryingToSetAnObject()
     {
+        $this->expectException(\InvalidArgumentException::class);
+        $this->expectExceptionMessage('cannot use this cache to cache an object');
+
         $value = (object) array('anyotherE' => 'anyOtherValUE', 1 => array(2));
         $this->cache->save($this->cacheId, $value);
 
diff --git a/tests/LazyTest.php b/tests/LazyTest.php
index 0443f6a..3ce5ace 100644
--- a/tests/LazyTest.php
+++ b/tests/LazyTest.php
@@ -15,6 +15,7 @@
 /**
  * @covers \Matomo\Cache\Lazy
  */
+ #[\PHPUnit\Framework\Attributes\CoversClass(Lazy::class)]
 class LazyTest extends TestCase
 {
     /**
@@ -25,35 +26,36 @@ class LazyTest extends TestCase
     private $cacheId = 'testid';
     private $cacheValue = 'exampleValue';
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $backend = new ArrayCache();
         $this->cache = new Lazy($backend);
         $this->cache->save($this->cacheId, $this->cacheValue);
     }
 
-    /**
-     * @expectedException \InvalidArgumentException
-     * @expectedExceptionMessage Empty cache id
-     */
     public function test_fetch_shouldFail_IfCacheIdIsEmpty()
     {
+        $this->expectException(\InvalidArgumentException::class);
+        $this->expectExceptionMessage('Empty cache id');
+
         $this->cache->fetch('');
     }
 
     /**
      * @dataProvider getInvalidCacheIds
-     * @expectedException \InvalidArgumentException
-     * @expectedExceptionMessage Invalid cache id
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getInvalidCacheIds')]
     public function test_shouldFail_IfCacheIdIsInvalid($method, $id)
     {
+        $this->expectException(\InvalidArgumentException::class);
+        $this->expectExceptionMessage('Invalid cache id');
         $this->executeMethodOnCache($method, $id);
     }
 
     /**
      * @dataProvider getValidCacheIds
      */
+     #[\PHPUnit\Framework\Attributes\DataProvider('getValidCacheIds')]
     public function test_shouldNotFail_IfCacheIdIsValid($method, $id)
     {
         $this->executeMethodOnCache($method, $id);
@@ -131,12 +133,11 @@ public function test_save_shouldBeAbleToSetArrays()
         $this->assertSame($value, $this->cache->fetch($this->cacheId));
     }
 
-    /**
-     * @expectedException \InvalidArgumentException
-     * @expectedExceptionMessage cannot use this cache to cache an object
-     */
     public function test_save_shouldFail_IfTryingToSetAnObject()
     {
+        $this->expectException(\InvalidArgumentException::class);
+        $this->expectExceptionMessage('cannot use this cache to cache an object');
+
         $value = (object) array('anyotherE' => 'anyOtherValUE', 1 => array(2));
         $this->cache->save($this->cacheId, $value);
 
@@ -173,7 +174,7 @@ private function assertHasNotCacheEntry($cacheId)
         $this->assertFalse($this->cache->contains($cacheId));
     }
 
-    public function getInvalidCacheIds()
+    public static function getInvalidCacheIds()
     {
         $ids = array();
         $methods = array('fetch', 'save', 'contains', 'delete');
@@ -192,7 +193,7 @@ public function getInvalidCacheIds()
         return $ids;
     }
 
-    public function getValidCacheIds()
+    public static function getValidCacheIds()
     {
         $ids = array();
         $methods = array('fetch', 'save', 'contains', 'delete');
diff --git a/tests/TransientTest.php b/tests/TransientTest.php
index 559f7bf..9eedee6 100644
--- a/tests/TransientTest.php
+++ b/tests/TransientTest.php
@@ -14,6 +14,7 @@
 /**
  * @covers \Matomo\Cache\Transient
  */
+#[\PHPUnit\Framework\Attributes\CoversClass(Transient::class)]
 class TransientTest extends TestCase
 {
     /**
@@ -24,7 +25,7 @@ class TransientTest extends TestCase
     private $cacheId = 'testid';
     private $cacheValue = 'exampleValue';
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->cache = new Transient();
         $this->cache->save($this->cacheId, $this->cacheValue);