diff --git a/composer.json b/composer.json
index 7b876f9a..d68dd1a7 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
         "laravel/framework": "^6.0|^7.0",
         "orchestra/testbench-browser-kit": "^4.0|^5.0",
         "league/flysystem-aws-s3-v3": "~1.0",
-        "phpunit/phpcov": "dev-master"
+        "phpunit/phpcov": "^6.0|^7.0"
     },
     "autoload": {
         "psr-4": {