diff --git a/composer.json b/composer.json
index c5087f2e..38fb2826 100644
--- a/composer.json
+++ b/composer.json
@@ -62,7 +62,7 @@
     },
     "require-dev": {
         "ext-xml": "*",
-        "brianium/paratest": "^7.0",
+        "brianium/paratest": "^6.6",
         "friendsofphp/php-cs-fixer": "^3.12",
         "php-parallel-lint/php-parallel-lint": "^1.3",
         "squizlabs/php_codesniffer": "^3.7",