diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 00000000..eb20eac5
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,49 @@
+name: Test
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php-versions: ['5.6', '7.0', '7.1', '7.2', '7.3', '7.4']
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php-versions }}
+
+    - name: Validate composer.json and composer.lock
+      run: composer validate --strict
+
+    - name: Cache Composer packages
+      id: composer-cache
+      uses: actions/cache@v2
+      with:
+        path: vendor
+        key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-php-
+
+    - name: Install dependencies
+      run: composer install --prefer-dist --no-progress
+
+    - name: Upload composer.lock
+      uses: actions/upload-artifact@v2
+      with:
+        name: composer.lock
+        path: composer.lock
+
+    - name: Run test suite
+      run: composer test
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 5f0a043e..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-language: php
-dist: trusty
-
-php:
-  - 5.5
-  - 5.6
-  - 7.0
-  - 7.1
-  - 7.2
-  - 7.3
-  - 7.4
-  - nightly
-
-before_script:
-  - composer install
-
-script:
-  - vendor/bin/phpunit tests
-
-matrix:
-  fast_finish: true
-  allow_failures:
-    - php: nightly
diff --git a/composer.json b/composer.json
index 880a9395..8fc6db67 100644
--- a/composer.json
+++ b/composer.json
@@ -10,9 +10,9 @@
     "license": "Apache-2.0",
     "keywords": ["Drupal", "AMP", "mobile"],
     "homepage": "https://github.com/Lullabot/amp-library",
-    "require" : {
-        "php" : ">=5.5",
-        "querypath/querypath": ">=3.0.4",
+    "require": {
+        "php": ">=5.6",
+        "querypath/querypath": "^3.0.4",
         "sebastian/diff": "^1.2 || ^2 || ^3",
         "marc1706/fast-image-size": "1.*",
         "sabberworm/php-css-parser": "^8.0.0",
@@ -24,8 +24,10 @@
         "psr-4": {"Lullabot\\AMP\\": "src"}
     },
     "require-dev": {
-        "php" : ">=5.5",
-        "phpunit/phpunit": "4.8.* || ^6",
+        "phpunit/phpunit": "^5.6.3 || ^6",
         "symfony/console": "^2.7.0"
+    },
+    "scripts": {
+        "test": "phpunit tests"
     }
 }