diff --git a/composer.json b/composer.json
index aaa7372..0e24567 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
     },
     "require": {
         "php": "^7.4|^8.0",
-        "symfony/yaml": "^4.0|^5.0|^6.0|^7.0",
+        "symfony/yaml": "^4.0|^5.0|^6.0|^7.0|^8.0",
         "league/commonmark": "^2.0"
     },
     "require-dev": {