diff --git a/composer.json b/composer.json
index 3f7be6fdbc..35d668f551 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "ext-simplexml": "*",
     "solarium/solarium": "6.2.3",
     "typo3/cms-backend": "*",
-    "typo3/cms-core": "^11.5.14",
+    "typo3/cms-core": "^12.0.0",
     "typo3/cms-extbase": "*",
     "typo3/cms-fluid": "*",
     "typo3/cms-frontend": "*",
diff --git a/ext_emconf.php b/ext_emconf.php
index f65d033492..a773edc37a 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -12,7 +12,7 @@
     'constraints' => [
         'depends' => [
             'scheduler' => '',
-            'typo3' => '11.5.14-11.5.99',
+            'typo3' => '12.0.0-12.5.99',
         ],
         'conflicts' => [],
         'suggests' => [],