diff --git a/typo3/sysext/install/Classes/SystemEnvironment/ServerResponse/ServerResponseCheck.php b/typo3/sysext/install/Classes/SystemEnvironment/ServerResponse/ServerResponseCheck.php
index c2d112478ae939ed6b5bfad26bab931bacb79a58..06a4ed9b6cc8285d55ed86c8391e4befb313b64d 100644
--- a/typo3/sysext/install/Classes/SystemEnvironment/ServerResponse/ServerResponseCheck.php
+++ b/typo3/sysext/install/Classes/SystemEnvironment/ServerResponse/ServerResponseCheck.php
@@ -84,7 +84,7 @@ class ServerResponseCheck implements CheckInterface
         }
         $detailsLink = sprintf(
             '<p><a href="%s" rel="noreferrer" target="_blank">%s</a></p>',
-            'https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/9.5.x/Feature-91354-IntegrateServerResponseSecurityChecks.html',
+            'https://docs.typo3.org/c/typo3/cms-core/main/en-us/Changelog/9.5.x/Feature-91354-IntegrateServerResponseSecurityChecks.html',
             'Please see documentation for further details...'
         );
         if ($messageQueue->getAllMessages(FlashMessage::ERROR) !== []) {
diff --git a/typo3/sysext/install/Classes/UpgradeAnalysis/DocumentationFile.php b/typo3/sysext/install/Classes/UpgradeAnalysis/DocumentationFile.php
index 00b4d60f23db64c14ecb70242052b69efd3ef841..0885a406109f27d797196e600d781d758a393fff 100644
--- a/typo3/sysext/install/Classes/UpgradeAnalysis/DocumentationFile.php
+++ b/typo3/sysext/install/Classes/UpgradeAnalysis/DocumentationFile.php
@@ -150,7 +150,7 @@ class DocumentationFile
         $entry['file_hash'] = md5($entry['content']);
         if ($entry['version'] !== '') {
             $entry['url']['documentation'] = sprintf(
-                'https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/%s/%s.html',
+                'https://docs.typo3.org/c/typo3/cms-core/main/en-us/Changelog/%s/%s.html',
                 $entry['version'],
                 $entry['filename']
             );
diff --git a/typo3/sysext/install/Resources/Private/Templates/Maintenance/Cards.html b/typo3/sysext/install/Resources/Private/Templates/Maintenance/Cards.html
index e95d19e18dc108c54722aa9ad2ebbdc16569b04a..4d1d417ffe62d1735894d7eb1bdb7b70ffbf9624 100644
--- a/typo3/sysext/install/Resources/Private/Templates/Maintenance/Cards.html
+++ b/typo3/sysext/install/Resources/Private/Templates/Maintenance/Cards.html
@@ -39,7 +39,7 @@
             <f:then>
                 <div class="card-footer text-muted">
                     You can't use this feature, because your installation is in composer mode.
-                    Guide: <a href="https://docs.typo3.org/m/typo3/reference-coreapi/master/en-us/ApiOverview/Autoloading/Index.html#loading-classes-with-composer-mode" target="_blank" rel="noreferrer">Composer dumpautoload</a>.
+                    Guide: <a href="https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/ApiOverview/Autoloading/Index.html#loading-classes-with-composer-mode" target="_blank" rel="noreferrer">Composer dumpautoload</a>.
                 </div>
             </f:then>
             <f:else>