diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8b574d6..28d97cb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,10 +32,7 @@ jobs:
           php-version: ${{ matrix.php }}
           coverage: xdebug
       - run: composer install
-      - run: vendor/bin/phpunit --coverage-text
-        if: ${{ matrix.php >= 7.3 }}
-      - run: vendor/bin/phpunit --coverage-text -c phpunit.xml.legacy
-        if: ${{ matrix.php < 7.3 }}
+      - run: vendor/bin/phpunit --coverage-text ${{ matrix.php < 7.3 && '-c phpunit.xml.legacy' || '' }}
 
   PHPUnit-hhvm:
     name: PHPUnit (HHVM)
diff --git a/composer.json b/composer.json
index 51bb22e..d141d87 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         "react/socket": "^1.16"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.6 || ^5.7 || ^4.8.36"
+        "phpunit/phpunit": "^9.6 || ^8.5 || ^5.7 || ^4.8.36"
     },
     "autoload": {
         "psr-4": {