diff --git a/Classes/Domain/Repository/FeGroupsRepository.php b/Classes/Domain/Repository/FeGroupsRepository.php
index d7a10b6..b7dcc45 100644
--- a/Classes/Domain/Repository/FeGroupsRepository.php
+++ b/Classes/Domain/Repository/FeGroupsRepository.php
@@ -6,6 +6,7 @@ namespace In2code\In2frontendauthentication\Domain\Repository;
  *
  *  (c) 2016 Alex Kellner <alexander.kellner@in2code.de>, in2code.de
  *  (c) 2018 Marcel Kapfer <stuve.oeffentlichkeitsarbeit@uni-ulm.de>, Verfasste Studierendenschaft der Universität Ulm
+ *  (c) 2021 Marcel Kapfer <opensource@mmk2410.org>
  *
  *  All rights reserved
  *
diff --git a/Classes/Domain/Service/AuthenticationService.php b/Classes/Domain/Service/AuthenticationService.php
index b9a11a7..24cf10f 100644
--- a/Classes/Domain/Service/AuthenticationService.php
+++ b/Classes/Domain/Service/AuthenticationService.php
@@ -6,6 +6,7 @@ namespace In2code\In2frontendauthentication\Domain\Service;
  *
  *  (c) 2016 Alex Kellner <alexander.kellner@in2code.de>, in2code.de
  *  (c) 2018 Marcel Kapfer <stuve.oeffentlichkeitsarbeit@uni-ulm.de>, Verfasste Studierendenschaft der Universität Ulm
+ *  (c) 2021 Marcel Kapfer <opensource@mmk2410.org>
  *
  *  All rights reserved
  *
diff --git a/Classes/Slot/AddCustomGroupsSlot.php b/Classes/Slot/AddCustomGroupsSlot.php
index 2660b7d..4aa2dbc 100644
--- a/Classes/Slot/AddCustomGroupsSlot.php
+++ b/Classes/Slot/AddCustomGroupsSlot.php
@@ -6,6 +6,7 @@ namespace In2code\In2frontendauthentication\Slot;
  *
  *  (c) 2016 Alex Kellner <alexander.kellner@in2code.de>, in2code.de
  *  (c) 2018 Marcel Kapfer <stuve.oeffentlichkeitsarbeit@uni-ulm.de>, Verfasste Studierendenschaft der Universität Ulm
+ *  (c) 2021 Marcel Kapfer <opensource@mmk2410.org>
  *
  *  All rights reserved
  *
diff --git a/composer.json b/composer.json
index c4d06b9..bb9795f 100644
--- a/composer.json
+++ b/composer.json
@@ -11,6 +11,10 @@
     {
       "name": "Marcel Kapfer",
       "email": "stuve.oeffentlichkeitsarbeit@uni-ulm.de"
+    },
+    {
+      "name": "Marcel Kapfer",
+      "email": "opensource@mmk2410.org"
     }
   ],
   "type": "typo3-cms-extension",
diff --git a/ext_emconf.php b/ext_emconf.php
index 1e055a7..e9b7669 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -1,15 +1,5 @@
 <?php
 
-/***************************************************************
- * Extension Manager/Repository config file for ext "powermail".
- *
- * Auto generated 04-07-2013 17:03
- *
- * Manual updates:
- * Only the data in the array - everything else is removed by next
- * writing. "version" and "dependencies" must not be touched!
- ***************************************************************/
-
 $EM_CONF[$_EXTKEY] = [
     'title' => 'in2frontendauthentication',
     'description' => 'Authenticate every visitor as a defined frontend user if IP matches',
@@ -27,9 +17,9 @@ $EM_CONF[$_EXTKEY] = [
     'modify_tables' => '',
     'clearcacheonload' => 1,
     'lockType' => '',
-    'author' => 'Alex Kellner',
-    'author_email' => 'alexander.kellner@in2code.de',
-    'author_company' => 'in2code.de',
+    'author' => 'Marcel Kapfer',
+    'author_email' => 'opensource@mmk2410.org',
+    'author_company' => '',
     'CGLcompliance' => '',
     'CGLcompliance_note' => '',
     'constraints' => [