diff --git a/.travis.yml b/.travis.yml
index 24c2d6c..52e5cb6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,8 @@ php:
   - 7.1
   - 7.2
   - 7.3
+  - 7.4
+  - 8.0
 
 env:
   matrix:
diff --git a/composer.json b/composer.json
index a595872..73dd5a5 100644
--- a/composer.json
+++ b/composer.json
@@ -16,12 +16,12 @@
         }
     ],
     "require": {
-        "php": "^7.1",
+        "php": "^7.1|^8.0",
         "illuminate/support": "~5.8.0|^6.0|^7.0|^8.0"
     },
     "require-dev": {
-        "orchestra/testbench": "3.8.*",
-        "phpunit/phpunit": "^7.0"
+        "orchestra/testbench": "^3.8|^4.0|^5.0|^6.0",
+        "phpunit/phpunit": "^7.0|^8.0"
     },
     "autoload": {
         "psr-4": {