diff --git a/lib/tests/behat/behat_accessibility.php b/lib/tests/behat/behat_accessibility.php
index 022a7aed7f1..d2013670bdf 100644
--- a/lib/tests/behat/behat_accessibility.php
+++ b/lib/tests/behat/behat_accessibility.php
@@ -46,7 +46,7 @@ class behat_accessibility extends behat_base {
      * It is also possible to specify any desired optional tags.
      *
      * The list of available tags can be found at
-     * https://github.com/dequelabs/axe-core/blob/v3.5.5/doc/rule-descriptions.md.
+     * https://github.com/dequelabs/axe-core/blob/v4.5.1/doc/rule-descriptions.md.
      *
      * @Then the page should meet accessibility standards
      * @Then the page should meet accessibility standards with :extratags extra tests
@@ -191,10 +191,10 @@ EOF;
         if (empty($standardtags)) {
             $standardtags = [
                 // Meet WCAG 2.1 A requirements.
-                'wcag2a',
+                'wcag21a',
 
                 // Meet WCAG 2.1 AA requirements.
-                'wcag2aa',
+                'wcag21aa',
 
                 // Meet Section 508 requirements.
                 // See https://www.epa.gov/accessibility/what-section-508 for detail.
@@ -203,7 +203,7 @@ EOF;
                 // Ensure that ARIA attributes are correctly defined.
                 'cat.aria',
 
-                // Requiremetns for sensory and visual cues.
+                // Requirements for sensory and visual cues.
                 // These largely related to viewport scale and zoom functionality.
                 'cat.sensory-and-visual-cues',
 
diff --git a/lib/thirdpartylibs.xml b/lib/thirdpartylibs.xml
index da2006dd353..46918f5948d 100644
--- a/lib/thirdpartylibs.xml
+++ b/lib/thirdpartylibs.xml
@@ -22,7 +22,7 @@
     <licenseversion>2.0</licenseversion>
     <repository>https://github.com/dequelabs/axe-core</repository>
     <copyrights>
-      <copyright>2005, Jon Papaioannou</copyright>
+      <copyright>Deque Systems, Inc.</copyright>
     </copyrights>
   </library>
   <library>