diff --git a/tests/TestCase.php b/tests/TestCase.php
index 092e17f1..c2e7bf7d 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -89,10 +89,10 @@ abstract class TestCase extends \Orchestra\Testbench\TestCase
                 'driver' => 'pgsql',
                 'url' => env('DATABASE_URL'),
                 'host' => 'postgres',
-                'port' => '5432',
-                'database' => 'main',
-                'username' => 'postgres',
-                'password' => 'postgres',
+                'port' => env('POSTGRES_PORT', '5432'),
+                'database' => env('POSTGRES_DB', 'main'),
+                'username' => env('POSTGRES_USER', env('DB_USERNAME')),
+                'password' => env('POSTGRES_PASSWORD', env('DB_PASSWORD')),
                 'charset' => 'utf8',
                 'prefix' => '',
                 'prefix_indexes' => true,