diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..a22124e
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,31 @@
+on:
+  - pull_request
+  - push
+
+name: CI
+
+jobs:
+  run:
+    name: Tests
+
+    strategy:
+      matrix:
+        operating-system: [ubuntu-latest]
+        php-versions: ['5.3', '5.4', '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2']
+
+    runs-on: ${{ matrix.operating-system }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-versions }}
+
+      - name: Install dependencies with composer
+        run: composer install
+
+      - name: Run tests
+        run: ./vendor/bin/phpunit
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 7e85a3d..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-language: php
-sudo: false
-dist: precise
-
-php:
-  - 5.3
-  - 5.4
-  - 5.5
-  - 5.6
-  - 7.0
-  - 7.1
-  - 7.2
-  - 7.3
-  - nightly
-  - hhvm
-
-matrix:
-  allow_failures:
-    - php: nightly
-    - php: hhvm
-
-install: composer install
-script: vendor/bin/phpunit --coverage-clover=coverage.clover
diff --git a/composer.json b/composer.json
index 9256936..dda72f0 100644
--- a/composer.json
+++ b/composer.json
@@ -20,8 +20,11 @@
 			"homepage": "http://github.com/henderjon"
 		}
 	],
+	"require": {
+		"php" : ">=5.3.0"
+	},
 	"require-dev": {
-		"phpunit/phpunit": "~4.1"
+		"phpunit/phpunit": "~4.8|~9"
 	},
 	"autoload"   : {
 		"files": ["src/array.php"]
diff --git a/test/ArrayFunctionsTest.php b/test/ArrayFunctionsTest.php
index db4e107..7ebb6dd 100644
--- a/test/ArrayFunctionsTest.php
+++ b/test/ArrayFunctionsTest.php
@@ -1,6 +1,6 @@
 <?php
 
-class ArrayFunctionsTest extends PHPUnit_Framework_TestCase {
+class ArrayFunctionsTest extends \PHPUnit\Framework\TestCase {
 
 	public function testArrayFlatten() {
 		$this->assertEquals(
@@ -53,4 +53,3 @@ public function testArrayKeyRefill() {
 
 
 }
- 
\ No newline at end of file