diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..16be5cc
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,46 @@
+name: CI
+
+on: [push]
+
+jobs:
+  lint:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      matrix:
+        operating-system: [ubuntu-latest]
+        php-versions: ['7.4', '8.0', '8.1', '8.2', '8.3']
+    name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Install PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php-versions }}
+        extensions: intl
+    - uses: michaelw90/PHP-Lint@master
+  phpunit:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      matrix:
+        operating-system: [ubuntu-latest]
+        php-versions: ['7.4', '8.0', '8.1', '8.2', '8.3']
+    name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Install PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php-versions }}
+        extensions: intl
+    - uses: php-actions/composer@v6
+      with:
+        php-version: ${{ matrix.php-versions }}
+    - uses: php-actions/phpunit@v3
+      with:
+        php-version: ${{ matrix.php-versions }}
+        bootstrap: vendor/autoload.php
+        log_junit: 1
+        testdox_text: 1
+        args: tests/Unit/
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 95a5e04..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,49 +0,0 @@
-language: php
-
-php:
-  - 7.2
-  - 7.3
-  - 7.4
-  - 8.0
-  - 8.1
-  - 8.2
-  - 8.3
-
-addons:
-  apt:
-    packages:
-      - parallel
-
-sudo: false
-cache:
-  directories:
-    - $HOME/.composer/cache
-
-# Do not build feature branches or alpha/beta releases
-branches:
-  only:
-    - master
-    - develop
-    - /^([0-9]+\.){1,2}(x|[0-9]+)$/
-
-notifications:
-  email:
-    - typo3@helhum.io
-
-before_install:
-  - phpenv config-rm xdebug.ini
-  - composer self-update
-  - composer --version
-
-before_script:
-  - composer install
-
-script:
-  - >
-    echo;
-    echo "Running unit tests";
-    vendor/bin/phpunit tests/Unit/
-  - >
-    echo;
-    echo "Running php lint";
-    find . -name \*.php ! -path "./vendor/*" | parallel --gnu php -d display_errors=stderr -l {} > /dev/null \;
diff --git a/composer.json b/composer.json
index 48582d0..3872e41 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
     },
     "require-dev": {
         "composer/composer": "^1.0 || 2.0.*@dev",
-        "phpunit/phpunit": "^5",
+        "phpunit/phpunit": "^9",
         "mikey179/vfsstream": "^1.6.0",
         "composer/semver": "^1.0 || ^2.0 || 3.0.*@dev"
     },
diff --git a/tests/Unit/IncludeFileTest.php b/tests/Unit/IncludeFileTest.php
index edb1d8c..fc2d264 100644
--- a/tests/Unit/IncludeFileTest.php
+++ b/tests/Unit/IncludeFileTest.php
@@ -5,10 +5,12 @@
 use Helhum\DotEnvConnector\Adapter\SymfonyDotEnv;
 use Helhum\DotEnvConnector\Config;
 use Helhum\DotEnvConnector\IncludeFile;
+use PHPUnit\Framework\TestCase;
+use Prophecy\Prophet;
 
-class IncludeFileTest extends \PHPUnit_Framework_TestCase
+class IncludeFileTest extends TestCase
 {
-    protected function tearDown()
+    protected function tearDown(): void
     {
         if (file_exists(__DIR__ . '/Fixtures/vendor/helhum/include.php')) {
             unlink(__DIR__ . '/Fixtures/vendor/helhum/include.php');
@@ -28,15 +30,18 @@ protected function tearDown()
      */
     public function dumpDumpsFile()
     {
-        $configProphecy = $this->prophesize(Config::class);
-        $configProphecy->get('env-file')->willReturn(__DIR__ . '/Fixtures/env/.env');
-        $configProphecy->get('adapter')->willReturn(SymfonyDotEnv::class);
-        $loaderProphecy = $this->prophesize(ClassLoader::class);
-        $loaderProphecy->register()->shouldBeCalled();
-        $loaderProphecy->unregister()->shouldBeCalled();
+        $config = new Config();
+        $config->merge(['extra' => ['helhum/dotenv-connector' => [
+            'env-file' => __DIR__ . '/Fixtures/env/.env',
+            'adapter' => SymfonyDotEnv::class
+        ]]]);
+        /** @var ClassLoader|\PHPUnit\Framework\MockObject\MockObject $loaderMock */
+        $loaderMock = $this->createMock(ClassLoader::class);
+        $loaderMock->expects($this->once())->method('register');
+        $loaderMock->expects($this->once())->method('unregister');
 
         $includeFilePath = __DIR__ . '/Fixtures/vendor/helhum/include.php';
-        $includeFile = new IncludeFile($configProphecy->reveal(), $loaderProphecy->reveal(), $includeFilePath);
+        $includeFile = new IncludeFile($config, $loaderMock, $includeFilePath);
         $includeFile->dump();
         $this->assertTrue(file_exists($includeFilePath));
     }
@@ -46,15 +51,18 @@ public function dumpDumpsFile()
      */
     public function includingFileExposesEnvVars()
     {
-        $configProphecy = $this->prophesize(Config::class);
-        $configProphecy->get('env-file')->willReturn(__DIR__ . '/Fixtures/env/.env');
-        $configProphecy->get('adapter')->willReturn(SymfonyDotEnv::class);
-        $loaderProphecy = $this->prophesize(ClassLoader::class);
-        $loaderProphecy->register()->shouldBeCalled();
-        $loaderProphecy->unregister()->shouldBeCalled();
+        $config = new Config();
+        $config->merge(['extra' => ['helhum/dotenv-connector' => [
+            'env-file' => __DIR__ . '/Fixtures/env/.env',
+            'adapter' => SymfonyDotEnv::class
+        ]]]);
+        /** @var ClassLoader|\PHPUnit\Framework\MockObject\MockObject $loaderMock */
+        $loaderMock = $this->createMock(ClassLoader::class);
+        $loaderMock->expects($this->once())->method('register');
+        $loaderMock->expects($this->once())->method('unregister');
 
         $includeFilePath = __DIR__ . '/Fixtures/vendor/helhum/include.php';
-        $includeFile = new IncludeFile($configProphecy->reveal(), $loaderProphecy->reveal(), $includeFilePath);
+        $includeFile = new IncludeFile($config, $loaderMock, $includeFilePath);
         $includeFile->dump();
         $this->assertTrue(file_exists($includeFilePath));
 
@@ -67,15 +75,18 @@ public function includingFileExposesEnvVars()
     public function includingFileDoesNothingIfEnvVarSet()
     {
         putenv('APP_ENV=1');
-        $configProphecy = $this->prophesize(Config::class);
-        $configProphecy->get('env-file')->willReturn(__DIR__ . '/Fixtures/env/.env');
-        $configProphecy->get('adapter')->willReturn(SymfonyDotEnv::class);
-        $loaderProphecy = $this->prophesize(ClassLoader::class);
-        $loaderProphecy->register()->shouldBeCalled();
-        $loaderProphecy->unregister()->shouldBeCalled();
+        $config = new Config();
+        $config->merge(['extra' => ['helhum/dotenv-connector' => [
+            'env-file' => __DIR__ . '/Fixtures/env/.no-env',
+            'adapter' => SymfonyDotEnv::class
+        ]]]);
+        /** @var ClassLoader|\PHPUnit\Framework\MockObject\MockObject $loaderMock */
+        $loaderMock = $this->createMock(ClassLoader::class);
+        $loaderMock->expects($this->once())->method('register');
+        $loaderMock->expects($this->once())->method('unregister');
 
         $includeFilePath = __DIR__ . '/Fixtures/vendor/helhum/include.php';
-        $includeFile = new IncludeFile($configProphecy->reveal(), $loaderProphecy->reveal(), $includeFilePath);
+        $includeFile = new IncludeFile($config, $loaderMock, $includeFilePath);
         $includeFile->dump();
         $this->assertTrue(file_exists($includeFilePath));
 
@@ -87,15 +98,18 @@ public function includingFileDoesNothingIfEnvVarSet()
      */
     public function includingFileDoesNothingIfEnvFileDoesNotExist()
     {
-        $configProphecy = $this->prophesize(Config::class);
-        $configProphecy->get('env-file')->willReturn(__DIR__ . '/Fixtures/env/.no-env');
-        $configProphecy->get('adapter')->willReturn(SymfonyDotEnv::class);
-        $loaderProphecy = $this->prophesize(ClassLoader::class);
-        $loaderProphecy->register()->shouldBeCalled();
-        $loaderProphecy->unregister()->shouldBeCalled();
+        $config = new Config();
+        $config->merge(['extra' => ['helhum/dotenv-connector' => [
+            'env-file' => __DIR__ . '/Fixtures/env/.no-env',
+            'adapter' => SymfonyDotEnv::class
+        ]]]);
+        /** @var ClassLoader|\PHPUnit\Framework\MockObject\MockObject $loaderMock */
+        $loaderMock = $this->createMock(ClassLoader::class);
+        $loaderMock->expects($this->once())->method('register');
+        $loaderMock->expects($this->once())->method('unregister');
 
         $includeFilePath = __DIR__ . '/Fixtures/vendor/helhum/include.php';
-        $includeFile = new IncludeFile($configProphecy->reveal(), $loaderProphecy->reveal(), $includeFilePath);
+        $includeFile = new IncludeFile($config, $loaderMock, $includeFilePath);
         $includeFile->dump();
         $this->assertTrue(file_exists($includeFilePath));
 
@@ -107,16 +121,19 @@ public function includingFileDoesNothingIfEnvFileDoesNotExist()
      */
     public function dumpReturnsFalseIfFileCannotBeWritten()
     {
-        $configProphecy = $this->prophesize(Config::class);
-        $configProphecy->get('env-file')->willReturn(__DIR__ . '/Fixtures/env/.no-env');
-        $configProphecy->get('adapter')->willReturn(SymfonyDotEnv::class);
-        $loaderProphecy = $this->prophesize(ClassLoader::class);
-        $loaderProphecy->register()->shouldBeCalled();
-        $loaderProphecy->unregister()->shouldBeCalled();
+        $config = new Config();
+        $config->merge(['extra' => ['helhum/dotenv-connector' => [
+            'env-file' => __DIR__ . '/Fixtures/env/.env',
+            'adapter' => SymfonyDotEnv::class
+        ]]]);
+        /** @var ClassLoader|\PHPUnit\Framework\MockObject\MockObject $loaderMock */
+        $loaderMock = $this->createMock(ClassLoader::class);
+        $loaderMock->expects($this->once())->method('register');
+        $loaderMock->expects($this->once())->method('unregister');
 
         mkdir(__DIR__ . '/Fixtures/foo', 000);
         $includeFilePath = __DIR__ . '/Fixtures/foo/include.php';
-        $includeFile = new IncludeFile($configProphecy->reveal(), $loaderProphecy->reveal(), $includeFilePath);
+        $includeFile = new IncludeFile($config, $loaderMock, $includeFilePath);
         $this->assertFalse($includeFile->dump());
     }
 }