diff --git a/composer.json b/composer.json
index 7bb5e45f..f74bf7ba 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "friendsofphp/php-cs-fixer": ">= 2.17 < 4.0",
     "jangregor/phpstan-prophecy": "^1.0",
     "phpstan/phpstan": "^1.2",
-    "phpunit/phpunit": ">= 7.0 < 10.0"
+    "phpunit/phpunit": ">= 7.5 < 10.0"
   },
   "autoload": {
     "psr-4": {