diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 200c1b5..92833a8 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -46,6 +46,7 @@ jobs:
             - '8.2'
             - '8.3'
             - '8.4'
+            - '8.5'
     steps:
         -   name: Setup PHP
             uses: shivammathur/setup-php@v2
@@ -77,6 +78,7 @@ jobs:
             - '8.2'
             - '8.3'
             - '8.4'
+            - '8.5'
     steps:
       -   name: Setup PHP
           uses: shivammathur/setup-php@v2
diff --git a/composer.json b/composer.json
index 615e11c..f9f0f8d 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
         "ext-xml": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "^7.0 || ^9.0",
+        "phpunit/phpunit": "^6.0 || ^7.0 || ^8.0 || ^9.0",
         "phpstan/phpstan": "^0.12.88 || ^1.0.0"
     }
 }