diff --git a/.travis.yml b/.travis.yml
index 42b65e8..5f22da1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,8 @@ language: php
 php:
   - 7.2
   - 7.3
+  - 7.4
+  - 8.0
 
 before_install:
   - composer self-update
diff --git a/composer.json b/composer.json
index 4971010..f4c01de 100644
--- a/composer.json
+++ b/composer.json
@@ -30,6 +30,7 @@
     },
     "minimum-stability": "dev",
     "require-dev": {
-        "phpunit/phpunit": "5.*"
+        "phpunit/phpunit": ">=7.0",
+        "yoast/phpunit-polyfills": "1.x-dev"
     }
-}
\ No newline at end of file
+}
diff --git a/tests/ImportTest.php b/tests/ImportTest.php
index f0199af..cc00019 100644
--- a/tests/ImportTest.php
+++ b/tests/ImportTest.php
@@ -3,13 +3,13 @@
 namespace Tests\Thamaraiselvam\MysqlImport;
 
 use Exception;
-use PHPUnit_Framework_TestCase;
 use ReflectionMethod;
 use ReflectionProperty;
 use stdClass;
 use Thamaraiselvam\MysqlImport\Import;
+use Yoast\PHPUnitPolyfills\TestCases\TestCase;
 
-class ImportTest extends PHPUnit_Framework_TestCase
+class ImportTest extends TestCase
 {
     /**
      * @dataProvider constructorSetVariablesDataProvider