diff --git a/composer.json b/composer.json
index 0834394..100c28c 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
     "require-dev": {
         "symfony/var-dumper": "^3.3",
         "symfony/debug": "^3.3",
-        "phpunit/phpunit": "^6.4",
-        "mark-gerarts/phpstan-automapper-plus": "^0.1.0"
+        "mark-gerarts/phpstan-automapper-plus": "^0.1.0",
+        "phpunit/phpunit": "^7.0"
     }
 }