diff --git a/core/modules/layout_builder/tests/src/Functional/LayoutBuilderTest.php b/core/modules/layout_builder/tests/src/Functional/LayoutBuilderTest.php
index ece653c94e..d3b6eb1b68 100644
--- a/core/modules/layout_builder/tests/src/Functional/LayoutBuilderTest.php
+++ b/core/modules/layout_builder/tests/src/Functional/LayoutBuilderTest.php
@@ -584,12 +584,12 @@ public function testConcurrentEditing() {
     $this->drupalPostForm('admin/structure/types/manage/bundle_with_section_field/display/default', ['layout[enabled]' => TRUE], 'Save');
 
     $this->drupalGet('admin/structure/types/manage/bundle_with_section_field/display/default/layout');
-    $assert_session->elementsCount('css', '.layout-builder--layout', 1);
+    $assert_session->elementsCount('css', '.layout-builder__layout', 1);
     $assert_session->elementNotExists('css', '.layout--twocol-section');
     $page->clickLink('Add Section');
     $page->clickLink('Two column');
     $page->pressButton('Add section');
-    $assert_session->elementsCount('css', '.layout-builder--layout', 2);
+    $assert_session->elementsCount('css', '.layout-builder__layout', 2);
     $assert_session->elementExists('css', '.layout--twocol-section');
     $assert_session->pageTextContains('You have unsaved changes.');
     $assert_session->buttonExists('Save layout');
@@ -597,7 +597,7 @@ public function testConcurrentEditing() {
 
     $this->drupalLogin($user2);
     $this->drupalGet('admin/structure/types/manage/bundle_with_section_field/display/default/layout');
-    $assert_session->elementsCount('css', '.layout-builder--layout', 0);
+    $assert_session->elementsCount('css', '.layout-builder__layout', 0);
     $assert_session->pageTextContains(sprintf('This layout is being edited by user %s, and is therefore locked from editing by others.', $user1->getDisplayName()));
     $assert_session->pageTextNotContains('You have unsaved changes.');
     $assert_session->buttonNotExists('Save layout');
@@ -605,7 +605,7 @@ public function testConcurrentEditing() {
 
     $page->clickLink('break this lock');
     $page->pressButton('Confirm');
-    $assert_session->elementsCount('css', '.layout-builder--layout', 1);
+    $assert_session->elementsCount('css', '.layout-builder__layout', 1);
     $assert_session->elementNotExists('css', '.layout--twocol-section');
     $assert_session->pageTextNotContains(sprintf('This layout is being edited by user %s, and is therefore locked from editing by others.', $user1->getDisplayName()));
     $assert_session->pageTextNotContains('You have unsaved changes.');