diff --git a/composer.json b/composer.json
index 356230c..c7381b1 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "^8 || ^9"
+        "phpunit/phpunit": "^8 || ^9 || ^10"
     },
     "scripts": {
         "test": "phpunit --testdox"