diff --git a/README.md b/README.md
index e6ca460..43c3a19 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,8 @@ Rules:
 
 ## Authors & Sponsors
 
-* Simon Praetorius - praetorius@sitegeist.de
+* Ulrich Mathes - mathes@sitegeist.de
+* Simon Praetorius - moin@praetorius.me
 * [All contributors](https://github.com/sitegeist/fluid-components/graphs/contributors)
 
 *The development and the public-releases of this package is generously sponsored
diff --git a/composer.json b/composer.json
index 47f6832..d4cc16b 100644
--- a/composer.json
+++ b/composer.json
@@ -5,9 +5,13 @@
     "homepage": "https://github.com/sitegeist/csv-labels",
     "license": ["GPL-2.0-or-later"],
     "authors": [
+        {
+            "name": "Ulrich Mathes",
+            "email": "mathes@sitegeist.de"
+        },
         {
             "name": "Simon Praetorius",
-            "role": "Developer"
+            "email": "moin@praetorius.me"
         }
     ],
     "support": {
diff --git a/ext_emconf.php b/ext_emconf.php
index 4f571c4..2927216 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -3,8 +3,8 @@
     'title' => 'CSV Labels',
     'description' => 'Use CSV files to provide translation labels to TYPO3',
     'category' => 'misc',
-    'author' => 'Simon Praetorius',
-    'author_email' => 'praetorius@sitegeist.de',
+    'author' => 'Ulrich Mathes, Simon Praetorius',
+    'author_email' => 'mathes@sitegeist.de, moin@praetorius.me',
     'author_company' => 'sitegeist media solutions GmbH',
     'state' => 'stable',
     'uploadfolder' => false,