diff --git a/composer.json b/composer.json
index 5bc88d9..31efdc9 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
     "league/oauth2-client": ">=2.7",
     "waldhacker/typo3-oauth2-client": ">=2.1.1 || dev-feature/v12-compatibility-1",
     "ext-pdo": "*",
-    "typo3/cms-core": "^11.0 || ^12.0"
+    "typo3/cms-core": "^11.0 || ^12.0 || ^13.0"
   },
   "require-dev": {
     "saschaegerer/phpstan-typo3": "^1.8",