diff --git a/README.md b/README.md
index dc48fea..32d616e 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ Les's create a notification using artisan commend:
 php artisan make:notification FirebaseNotification
 ```
 
-Now you can use `firebase` channel in your `vie()` mothod.
+Now you can use `firebase` channel in your `via()` method.
 
 ```php
 public function via($notifiable)
diff --git a/composer.json b/composer.json
index 25392e0..36782d0 100644
--- a/composer.json
+++ b/composer.json
@@ -17,9 +17,9 @@
     ],
     "license": "MIT",
     "require": {
-        "php": ">=5.5.9",
-        "illuminate/support": "5.*",
-        "guzzlehttp/guzzle": "~6.0"
+        "php": ">=7.1",
+        "illuminate/support": "5.* | ^6.0",
+        "guzzlehttp/guzzle": "~6.0"    
     },
     "autoload": {
         "psr-4": {