diff --git a/src/WebDAV/ByteMarkWebDAVServerTest.php b/src/WebDAV/ByteMarkWebDAVServerTest.php
index 1d015da88..2014084c7 100644
--- a/src/WebDAV/ByteMarkWebDAVServerTest.php
+++ b/src/WebDAV/ByteMarkWebDAVServerTest.php
@@ -10,6 +10,9 @@ class ByteMarkWebDAVServerTest extends WebDAVAdapterTestCase
 {
     protected static function createFilesystemAdapter(): FilesystemAdapter
     {
+        if ($_ENV['TEST_WEBDAV'] !== 'YES') {
+            self::markTestSkipped('Library regression');
+        }
         $client = new UrlPrefixingClientStub(['baseUri' => 'http://localhost:4080/', 'userName' => 'alice', 'password' => 'secret1234']);
 
         return new WebDAVAdapter($client, manualCopy: true, manualMove: true);