diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 0cda1a5..135a11c 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -9,7 +9,7 @@ jobs:
             fail-fast: true
             matrix:
                 os: [ubuntu-latest, windows-latest]
-                php: [7.4]
+                php: [8.0, 7.4]
                 laravel: [8.*, 6.*, 7.*]
                 dependency-version: [prefer-lowest, prefer-stable]
                 include:
@@ -26,12 +26,6 @@ jobs:
             -   name: Checkout code
                 uses: actions/checkout@v2
 
-            -   name: Cache dependencies
-                uses: actions/cache@v1
-                with:
-                    path: ~/.composer/cache/files
-                    key: dependencies-laravel-${{ matrix.laravel }}-php-${{ matrix.php }}-composer-${{ hashFiles('composer.json') }}
-
             -   name: Setup PHP
                 uses: shivammathur/setup-php@v2
                 with:
diff --git a/composer.json b/composer.json
index 8d0f1a5..130bc05 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": "^7.2",
+        "php": "^7.3|^8.0",
         "illuminate/support": "^6.0|^7.0|^8.0",
         "league/iso3166": "^2.1.5"
     },
@@ -25,7 +25,7 @@
         "laravel/legacy-factories": "^1.0.4",
         "myclabs/php-enum": "^1.6",
         "orchestra/testbench": "^4.5|^5.0|^6.0",
-        "phpunit/phpunit": "^8.0|^9.3",
+        "phpunit/phpunit": "^9.3",
         "spatie/enum": "^2.2"
     },
     "autoload": {