diff --git a/composer.json b/composer.json
index ba47e27..fbb68da 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     ],
     "require": {
         "friendsofphp/php-cs-fixer": "^3.0",
-        "malukenho/docheader": "^0.1.7|1.0",
+        "malukenho/docheader": "^0.1.7|1.0|^1.0.0",
         "php": ">=7.3"
     },
     "extra": {