diff --git a/tests/Twig/Runtime/IconRuntimeTest.php b/tests/Twig/Runtime/IconRuntimeTest.php
index 53f00ed..6b7b68c 100644
--- a/tests/Twig/Runtime/IconRuntimeTest.php
+++ b/tests/Twig/Runtime/IconRuntimeTest.php
@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace Pcm\IconBundle\Tests\Twig\Functions;
 
+use Pcm\IconBundle\DependencyInjection\Configuration;
 use Pcm\IconBundle\Exception\ColourNotFound;
 use Pcm\IconBundle\Exception\IconNotFound;
 use Pcm\IconBundle\Twig\Runtime\IconRuntime;
@@ -37,6 +38,7 @@ class IconRuntimeTest extends TestCase
     protected function setUp(): void
     {
         $this->icon = new IconRuntime(
+            defaultOptions: ['size' => Configuration::DEFAULT_SIZE, 'colour' => Configuration::DEFAULT_COLOUR],
             directories: ['tests/icons'],
             colours: self::COLOURS
         );
@@ -122,7 +124,7 @@ class IconRuntimeTest extends TestCase
 
     public function testDefaultSizeIsSetOnSvgIfNoSizeOptionPassed(): void
     {
-        $defaultSize = IconRuntime::DEFAULT_SIZE;
+        $defaultSize = Configuration::DEFAULT_SIZE;
         $content = $this->icon->renderIcon(['icon' => self::ICON]);
 
         $regex = "/^<svg.+?width=\"{$defaultSize}\"/";
@@ -134,7 +136,7 @@ class IconRuntimeTest extends TestCase
 
     public function testDefaultSizeIsOnlySetOnce(): void
     {
-        $defaultSize = IconRuntime::DEFAULT_SIZE;
+        $defaultSize = Configuration::DEFAULT_SIZE;
         $content = $this->icon->renderIcon(['icon' => self::ICON]);
 
         $widthRegex = "/width=\"{$defaultSize}\"/";