diff --git a/More/EAV/Tests/EAVTest.php b/More/EAV/Tests/EAVTest.php
index 12b4efc..bb491d8 100644
--- a/More/EAV/Tests/EAVTest.php
+++ b/More/EAV/Tests/EAVTest.php
@@ -11,7 +11,7 @@ use PHPUnit\Framework\TestCase;
 
 class EAVTest extends TestCase
 {
-    public function testCanAddAttributeToEntity()
+    public function testCanAddAttributeToEntity(): void
     {
         $colorAttribute = new Attribute('color');
         $colorSilver = new Value($colorAttribute, 'silver');