diff --git a/composer.json b/composer.json
index 315e34c..0697b11 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
     },
     "require": {
         "phpdocumentor/guides-cli": "dev-main",
-        "symfony/clock": "^6.3",
+        "symfony/clock": "^6.4",
         "t3docs/guides-php-domain": "dev-main"
     }
 }