diff --git a/composer.json b/composer.json
index 51e858c..40caecd 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,8 @@
     "version": "0.1.2",
     "require": {
         "league/commonmark": "^2.8",
-        "symfony/yaml": "^8.0"
+        "symfony/yaml": "^7.0",
+        "php": ">=8.3"
     },
     "autoload": {
         "psr-4": {