diff --git a/composer.json b/composer.json
index 4166999..25558ec 100644
--- a/composer.json
+++ b/composer.json
@@ -17,6 +17,7 @@
     },
     "require-dev": {
         "ext-zlib": "*",
+        "ext-curl": "*",
         "josegonzalez/dotenv": "^4.0",
         "phpunit/phpunit": "^9.0",
         "php-http/mock-client": "^1.6",