diff --git a/composer.json b/composer.json
index 6ad46ee..f9d1344 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
   "extra": {
     "typo3/cms": {
       "extension-key": "headertypes",
-      "version": "1.2.1"
+      "version": "1.3.0"
     }
   }
 }
diff --git a/ext_emconf.php b/ext_emconf.php
index 62b0641..927c094 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -8,5 +8,12 @@
     'author_email' => 'typo3@b13.com',
     'author_company' => 'b13 GmbH, Stuttgart',
     'state' => 'stable',
-    'version' => '1.2.1',
+    'version' => '1.3.0',
+    'constraints' => [
+        'depends' => [
+            'typo3' => '12.4.0-14.99.99',
+        ],
+        'conflicts' => [],
+        'suggests' => [],
+    ],
 ];