diff --git a/Routes.php b/Routes.php
index 4999981..62cc791 100644
--- a/Routes.php
+++ b/Routes.php
@@ -32,7 +32,7 @@ public function __construct() {
 		 * @return Routes returns the instance of the Routes utility
 		 * @throws Exception Throws an exception when you try to declare and already existing route
 		 */
-		public function add(string $url = "", callable $callback = NULL, array $method = ["GET"]): self {
+		public function add(string $url = "", callable|string|null $callback = NULL, array $method = ["GET"]): self {
 			$tmpUrl = $url;
 
 			foreach ($method as $m) {
diff --git a/composer.json b/composer.json
index 10be8d8..9753fe6 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
 		}
 	],
 	"require": {
-		"php": ">=7.4",
+		"php": ">=8.0",
 		"ext-json": "*"
 	},
 	"autoload": {