diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceAudioVideoTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceAudioVideoTest.php
index ab78bb8..4ad3c5b 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceAudioVideoTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceAudioVideoTest.php
@@ -31,7 +31,7 @@ public function testAudioTypeCreation() {
     $this->assertInstanceOf(FieldStorageConfig::class, $storage);
     $field = FieldConfig::load("media.$type_name.$field_name");
     $this->assertInstanceOf(FieldConfig::class, $field);
-    $this->assertSame('mp3 ogg wav wma aiff aac m4a', FieldConfig::load("media.$type_name.$field_name")->get('settings')['file_extensions']);
+    $this->assertSame('mp3 wav aac', FieldConfig::load("media.$type_name.$field_name")->get('settings')['file_extensions']);
 
     // Check that the display holds the correct formatter configuration.
     $display = EntityViewDisplay::load("media.$type_name.default");
@@ -75,7 +75,7 @@ public function testVideoTypeCreation() {
     $this->assertInstanceOf(FieldStorageConfig::class, $storage);
     $field = FieldConfig::load("media.$type_name.$field_name");
     $this->assertInstanceOf(FieldConfig::class, $field);
-    $this->assertSame('mp4 webm ogg ogv', FieldConfig::load("media.$type_name.$field_name")->getSetting('file_extensions'));
+    $this->assertSame('mp4', FieldConfig::load("media.$type_name.$field_name")->getSetting('file_extensions'));
 
     // Check that the display holds the correct formatter configuration.
     $display = EntityViewDisplay::load("media.$type_name.default");