diff --git a/src/Fufle/ORM/Database/Credentials.php b/src/Fufle/ORM/Database/Credentials.php
index fbdb52b..47493ac 100644
--- a/src/Fufle/ORM/Database/Credentials.php
+++ b/src/Fufle/ORM/Database/Credentials.php
@@ -6,10 +6,10 @@ class Credentials {
     
     public function __construct(
         public string $host,
-        public int $port = null,
-        public string $database = null,
-        public string $user = null,
-        public string $password = null) {
+        public ?int $port = null,
+        public ?string $database = null,
+        public ?string $user = null,
+        public ?string $password = null) {
     }
     
 }
\ No newline at end of file