diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 332c1e3..6a8d267 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -22,7 +22,7 @@ jobs:
           tools: composer:v2
       - name: Install dependencies
         run: |
-          composer require php-coveralls/php-coveralls:^2.2 --dev --no-update
+          composer require php-coveralls/php-coveralls:^2.4 --dev --no-update
           composer update --no-progress --prefer-dist
       - name: Running PHPUnit
         run: "php vendor/bin/phpunit --coverage-clover=clover.xml"
diff --git a/composer.json b/composer.json
index ef870ae..06e28fb 100644
--- a/composer.json
+++ b/composer.json
@@ -27,9 +27,9 @@
         }
     },
     "require": {
-        "php": ">=7.2.0"
+        "php": ">=7.3.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.0"
+        "phpunit/phpunit": "^9.0"
     }
 }
\ No newline at end of file