diff --git a/.sample.development.env b/.sample.development.env
index a7eedff..b4aaa9e 100644
--- a/.sample.development.env
+++ b/.sample.development.env
@@ -1,2 +1 @@
 GEONAMES_USERNAME=''
-GEONAMES_TOKEN=''
diff --git a/tests/GeoNames/ClientTest.php b/tests/GeoNames/ClientTest.php
index 3b976d9..8255d04 100644
--- a/tests/GeoNames/ClientTest.php
+++ b/tests/GeoNames/ClientTest.php
@@ -34,8 +34,8 @@ final class ClientTest extends TestCase
     public function setUp(): void
     {
         $this->config = [
-            'token' => getenv('GEONAMES_TOKEN') ?? '',
-            'username' => getenv('GEONAMES_USERNAME') ?? '',
+            'token' => getenv('GEONAMES_TOKEN') ?: '',
+            'username' => getenv('GEONAMES_USERNAME') ?: '',
         ];
         $this->client = new GeoNamesClient($this->config['username'], $this->config['token']);
     }