diff --git a/core/modules/responsive_image/tests/src/Functional/ResponsiveImageFieldDisplayTest.php b/core/modules/responsive_image/tests/src/Functional/ResponsiveImageFieldDisplayTest.php
index c99ee3084a..d0bee328f6 100644
--- a/core/modules/responsive_image/tests/src/Functional/ResponsiveImageFieldDisplayTest.php
+++ b/core/modules/responsive_image/tests/src/Functional/ResponsiveImageFieldDisplayTest.php
@@ -493,7 +493,7 @@ public function testResponsiveImageFieldFormattersMultipleSources() {
     $image_uri = File::load($node->{$field_name}->target_id)->getFileUri();
     $medium_transform_url = $this->fileUrlGenerator->transformRelative($medium_style->buildUrl($image_uri));
     $large_transform_url = $this->fileUrlGenerator->transformRelative($large_style->buildUrl($image_uri));
-    $this->assertSession()->responseMatches('/<img loading="eager" srcset="' . \preg_quote($medium_transform_url, '/') . ' 1x, ' . \preg_quote($large_transform_url, '/') . ' 1.5x, ' . \preg_quote($large_transform_url, '/') . ' 2x" width="220" height="220" src="' . \preg_quote($large_transform_url, '/') . '" alt="\w+" \/>/');
+    $this->assertSession()->responseMatches('/<img loading="eager" srcset="' . \preg_quote($medium_transform_url, '/') . ' 1x, ' . \preg_quote($large_transform_url, '/') . ' 1.5x, ' . \preg_quote($large_transform_url, '/') . ' 2x" width="480" height="480" src="' . \preg_quote($large_transform_url, '/') . '" alt="\w+" \/>/');
 
     $this->responsiveImgStyle
       // Test the output of an empty media query.