diff --git a/composer.json b/composer.json
index 7d74f3e3..4a55aaf3 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         "helmich/typo3-typoscript-parser": "^2.6",
         "nette/utils": "^4.0",
         "phpstan/phpstan": "^1.10.9",
-        "sebastian/diff": "^5.0",
+        "sebastian/diff": "^5.0 || ^6.0",
         "shanethehat/pretty-xml": "^1.0",
         "symfony/config": "^6.4 || ^7.0",
         "symfony/console": "^6.4 || ^7.0",