diff --git a/composer.json b/composer.json
index 04e5071..db24efd 100644
--- a/composer.json
+++ b/composer.json
@@ -27,5 +27,10 @@
     },
     "suggest": {
         "ext-exif": "Install the PHP EXIF extension to display exif data of your pictures"
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "3.0.x-dev"
+        }
     }
 }
diff --git a/ext_emconf.php b/ext_emconf.php
index 4ed8db0..334fec0 100755
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -10,7 +10,7 @@
     'uploadfolder' => '0',
     'createDirs' => '',
     'clearCacheOnLoad' => 0,
-    'version' => '2.1.2',
+    'version' => '3.0.0',
     'constraints' => [
         'depends' => [
             'typo3' => '8.7.0-9.5.99',