diff --git a/.gitignore b/.gitignore
index 677266f..2376f98 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@ vendor
 composer.lock
 composer.phar
 .php_cs.cache
-.phpunit.result.cache
\ No newline at end of file
+.phpunit.result.cache
+clover.xml
diff --git a/composer.json b/composer.json
index 84937bd..e655687 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
         "psr/event-dispatcher": "1.0.*"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.5",
+        "phpunit/phpunit": "^9.5",
         "mockery/mockery": "^1.2",
         "friendsofphp/php-cs-fixer": "^2.15",
         "php-parallel-lint/php-parallel-lint": "^1.2",