diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..49c3898
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,48 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+  # Allow manually triggering the workflow.
+  workflow_dispatch:
+  
+jobs:
+  test:
+    name: PHP ${{ matrix.php }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        php: ['8.0']
+        phpunit: ['latest']
+        include:
+        - php: '7.2'
+          phpunit: '8.5.13'
+        - php: '7.3'
+          phpunit: '8.5.13'
+        - php: '7.4'
+          phpunit: '8.5.13'
+          coverage: xdebug
+          flags: '--coverage-clover clover.xml'
+#         - php: '8.1'
+#           experimental: true
+
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use PHP ${{ matrix.php }}
+      uses: shivammathur/setup-php@2.11.0
+      with:
+        php-version: ${{ matrix.php }}
+        tools: phpunit:${{ matrix.phpunit }}
+        coverage: ${{ matrix.coverage }}
+
+    - name: Install
+      run: composer install
+        
+    - name: Test
+      run: phpunit --configuration phpunit.xml.dist ${{ matrix.flags }}
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index b0d6c25..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-language: php
-
-env:
-  global:
-  - PHPUNIT_FLAGS='--no-coverage'
-  - TEST_COVERAGE=0
-
-
-# https://phpunit.de/supported-versions.html
-matrix:
-  include:
-  - php: 7.1
-    env: PHPUNIT_VERSION=7.5.*
-  - php: 7.2
-    env: PHPUNIT_VERSION=7.5.*
-  - php: 7.3
-    env: PHPUNIT_VERSION=7.5.*
-  - php: 7.4
-    env: PHPUNIT_VERSION=7.5.* TEST_COVERAGE=1 PHPUNIT_FLAGS='--coverage-clover clover.xml'
-  - php: nightly
-    env: PHPUNIT_VERSION=7.5.*
-  fast_finish: true
-  allow_failures:
-  - php: nightly
-
-cache:
-  apt: true
-  directories:
-    # Cache directory for older Composer versions.
-    - $HOME/.composer/cache/files
-    # Cache directory for more recent Composer versions.
-    - $HOME/.cache/composer/files
-
-install:
-  # Speed up build time by disabling Xdebug unless actually needed.
-  - if [ "$TEST_COVERAGE" != '1' ]; then phpenv config-rm xdebug.ini || echo 'No xdebug config.'; fi
-  - composer global require hirak/prestissimo --no-suggest --no-interaction
-  # Update composer.json to overwrite phpunit with specific version
-  - composer require "phpunit/phpunit:${PHPUNIT_VERSION}" --dev --no-update --no-interaction --no-suggest
-  - composer install --no-suggest --no-interaction --ignore-platform-reqs
-
-script: ./vendor/bin/phpunit --configuration ./phpunit.xml.dist $PHPUNIT_FLAGS
-
-after_script:
-  - |
-    if [ "$TEST_COVERAGE" == '1' ]; then
-      travis_retry wget https://scrutinizer-ci.com/ocular.phar;
-      travis_retry php ocular.phar code-coverage:upload --format=php-clover clover.xml;
-    fi
-
-notifications:
-  email: false
diff --git a/composer.json b/composer.json
index ec8084a..bbfa0d5 100644
--- a/composer.json
+++ b/composer.json
@@ -9,13 +9,13 @@
         "yourls-plugin"
     ],
     "require": {
-        "composer-plugin-api": "^1.0",
-        "wikimedia/composer-merge-plugin": "^1.4",
+        "composer-plugin-api": "^2.0",
+        "wikimedia/composer-merge-plugin": "^2.0",
         "symfony/thanks": "^1.2"
     },
     "require-dev": {
         "composer/composer": "^2.0.13",
-        "phpunit/phpunit": "^7.0"
+        "phpunit/phpunit": "^8.5"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/ComposerInstaller/Plugin.php b/src/ComposerInstaller/Plugin.php
index 1c78d15..5d39c52 100644
--- a/src/ComposerInstaller/Plugin.php
+++ b/src/ComposerInstaller/Plugin.php
@@ -42,4 +42,31 @@ public function getCapabilities()
         );
     }
 
+    /**
+     * Remove any hooks from Composer
+     *
+     * @codeCoverageIgnore
+     *
+     * @param \Composer\Composer $composer
+     * @param \Composer\IO\IOInterface $io
+     * @return void
+     */
+    public function deactivate(Composer $composer, IOInterface $io)
+    {
+        // nothing to do
+    }
+
+    /**
+     * Prepare the plugin to be uninstalled
+     *
+     * @codeCoverageIgnore
+     *
+     * @param Composer $composer
+     * @param IOInterface $io
+     * @return void
+     */
+    public function uninstall(Composer $composer, IOInterface $io)
+    {
+        // nothing to do
+    }
 }
diff --git a/tests/ComposerInstaller/MockDownloader.php b/tests/ComposerInstaller/MockDownloader.php
index 545882c..273e0a0 100644
--- a/tests/ComposerInstaller/MockDownloader.php
+++ b/tests/ComposerInstaller/MockDownloader.php
@@ -20,7 +20,7 @@ public function getInstallationSource()
         return 'dist';
     }
 
-    public function download(PackageInterface $package, $path)
+    public function download(PackageInterface $package, $path, ?$prevPackage = NULL)
     {
         // install a fake plugin directory
         $this->filesystem->ensureDirectoryExists($path);