diff --git a/core/includes/form.inc b/core/includes/form.inc
index 2e8e9e1..a8d6fce 100644
--- a/core/includes/form.inc
+++ b/core/includes/form.inc
@@ -2848,9 +2848,9 @@ function theme_form_element($variables) {
 function theme_form_required_marker($variables) {
   $attributes = array(
     'class' => 'form-required',
-    'title' => t('This field is required.'),
+    'aria-hidden' => 'true',
   );
-  return '<abbr' . new Attribute($attributes) . '>*</abbr>';
+  return '<span' . new Attribute($attributes) . '>*</span>';
 }
 
 /**
diff --git a/core/modules/system/lib/Drupal/system/Tests/Form/ElementsLabelsTest.php b/core/modules/system/lib/Drupal/system/Tests/Form/ElementsLabelsTest.php
index feb354b..6c51a04 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Form/ElementsLabelsTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Form/ElementsLabelsTest.php
@@ -59,16 +59,16 @@ function testFormLabels() {
 
     // Exercise various defaults for textboxes and modifications to ensure
     // appropriate override and correct behavior.
-    $elements = $this->xpath('//label[@for="edit-form-textfield-test-title-and-required"]/child::abbr[@class="form-required"]/parent::*/following-sibling::input[@id="edit-form-textfield-test-title-and-required"]');
+    $elements = $this->xpath('//label[@for="edit-form-textfield-test-title-and-required"]/child::span[@class="form-required"]/parent::*/following-sibling::input[@id="edit-form-textfield-test-title-and-required"]');
     $this->assertTrue(isset($elements[0]), 'Label precedes textfield, with required marker inside label.');
 
-    $elements = $this->xpath('//input[@id="edit-form-textfield-test-no-title-required"]/preceding-sibling::label[@for="edit-form-textfield-test-no-title-required"]/abbr[@class="form-required"]');
+    $elements = $this->xpath('//input[@id="edit-form-textfield-test-no-title-required"]/preceding-sibling::label[@for="edit-form-textfield-test-no-title-required"]/span[@class="form-required"]');
     $this->assertTrue(isset($elements[0]), 'Label tag with required marker precedes required textfield with no title.');
 
     $elements = $this->xpath('//input[@id="edit-form-textfield-test-title-invisible"]/preceding-sibling::label[@for="edit-form-textfield-test-title-invisible" and @class="visually-hidden"]');
     $this->assertTrue(isset($elements[0]), 'Label preceding field and label class is visually-hidden.');
 
-    $elements = $this->xpath('//input[@id="edit-form-textfield-test-title"]/preceding-sibling::abbr[@class="form-required"]');
+    $elements = $this->xpath('//input[@id="edit-form-textfield-test-title"]/preceding-sibling::span[@class="form-required"]');
     $this->assertFalse(isset($elements[0]), 'No required marker on non-required field.');
 
     $elements = $this->xpath('//input[@id="edit-form-textfield-test-title-after"]/following-sibling::label[@for="edit-form-textfield-test-title-after" and @class="option"]');
diff --git a/core/modules/system/lib/Drupal/system/Tests/Form/FormTest.php b/core/modules/system/lib/Drupal/system/Tests/Form/FormTest.php
index 4aa8eb8..c92d49c 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Form/FormTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Form/FormTest.php
@@ -94,7 +94,7 @@ function testRequiredFields() {
     $elements['file']['empty_values'] = $empty_strings;
 
     // Regular expression to find the expected marker on required elements.
-    $required_marker_preg = '@<label.*<abbr class="form-required" title="This field is required\.">\*</abbr></label>@';
+    $required_marker_preg = '@<label.*<span class="form-required" aria-hidden="true">\*</span></label>@';
 
     // Go through all the elements and all the empty values for them.
     foreach ($elements as $type => $data) {