diff --git a/tests/phpunit/data/images/codeispoetry.png b/tests/phpunit/data/images/codeispoetry.png
index 130fbbdae9..5dc5856d87 100644
Binary files a/tests/phpunit/data/images/codeispoetry.png and b/tests/phpunit/data/images/codeispoetry.png differ
diff --git a/tests/phpunit/tests/rest-api/rest-attachments-controller.php b/tests/phpunit/tests/rest-api/rest-attachments-controller.php
index defd86afeb..ec80fdc597 100644
--- a/tests/phpunit/tests/rest-api/rest-attachments-controller.php
+++ b/tests/phpunit/tests/rest-api/rest-attachments-controller.php
@@ -515,7 +515,7 @@ class WP_Test_REST_Attachments_Controller extends WP_Test_REST_Post_Type_Control
 		$request->set_file_params( array(
 			'file' => array(
 				'file'     => file_get_contents( $this->test_file2 ),
-				'name'     => 'codeispoetry.jpg',
+				'name'     => 'codeispoetry.png',
 				'size'     => filesize( $this->test_file2 ),
 				'tmp_name' => $this->test_file2,
 			),