diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 64bea46..490425c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,11 +8,11 @@ jobs:
 
     strategy:
       matrix:
-        php: [7.4, 8.0, 8.1, 8.2, 8.3]
+        php: [7.4, 8.0, 8.1, 8.2, 8.3, 8.4]
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
diff --git a/composer.json b/composer.json
index 5cd177a..7b2eb40 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
         }
     ],
     "require": {
-        "phpunit/phpunit": "^8.0|^9.0|^10.0|^11.0"
+        "phpunit/phpunit": "^8.0|^9.0|^10.0|^11.0|^12.0"
     },
     "autoload": {
        "psr-4": {