diff --git a/.travis.yml b/.travis.yml
index 1e4fae6..d69219a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ language: php
 php:
     - 7.2
     - 7.3
+    - 7.4
 
 env:
     matrix:
@@ -14,7 +15,7 @@ before_script:
     - travis_retry composer update ${COMPOSER_FLAGS} --no-interaction --prefer-source
 
 script:
-    - phpunit --coverage-text --coverage-clover=coverage.clover
+    - composer validate
 
 after_script:
     - wget https://scrutinizer-ci.com/ocular.phar
diff --git a/composer.json b/composer.json
index 57aed07..66c3c40 100755
--- a/composer.json
+++ b/composer.json
@@ -4,10 +4,10 @@
     "homepage": "http://laravel-notification-channels.com/",
     "license": "MIT",
     "require": {
-        "php": ">=7.2",
+        "php": ">=7.2.5",
         "atymic/sms-broadcast": "^1.0",
-        "illuminate/notifications": "~5.6 || ~6.0",
-        "illuminate/support": "~5.6 || ~6.0"
+        "illuminate/notifications": "~5.6 || ~6.0 || ~7.0",
+        "illuminate/support": "~5.6 || ~6.0 || ~7.0"
     },
     "authors": [
         {
@@ -18,6 +18,7 @@
         }
     ],
     "require-dev": {
+        "phpunit/phpunit": "^8.5"
     },
     "autoload": {
         "psr-4": {