diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6c58dbd..abfe063 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,15 +13,8 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: [7.2, 7.3, 7.4, '8.0', 8.1]
-        laravel: [6, 7, 8]
-        exclude:
-          - php: 7.2
-            laravel: 8
-          - php: 8.1
-            laravel: 6
-          - php: 8.1
-            laravel: 7
+        php: ['8.0', 8.1]
+        laravel: [8]
 
     name: PHP ${{ matrix.php }} - Laravel ${{ matrix.laravel }}
 
diff --git a/composer.json b/composer.json
index f240c8a..fcf9b18 100644
--- a/composer.json
+++ b/composer.json
@@ -10,13 +10,13 @@
         }
     ],
     "require": {
-        "php": "^7.2|^8.0",
-        "illuminate/notifications": "^6.0|^7.0|^8.0",
+        "php": "^8.0",
+        "illuminate/notifications": "^8.0",
         "nexmo/laravel": "^2.4"
     },
     "require-dev": {
         "mockery/mockery": "^1.0",
-        "phpunit/phpunit": "^8.0|^9.3"
+        "phpunit/phpunit": "^9.3"
     },
     "autoload": {
         "psr-4": {