diff --git a/composer.json b/composer.json
index fa2788ac5331287287dcec09d09c35468ae20566..c7b4faed3f2c0fd0705fa0be2874af78400283e2 100644
--- a/composer.json
+++ b/composer.json
@@ -15,6 +15,7 @@
         "slim/slim": "^3",
         "respect/validation": "^1.1",
         "guzzlehttp/guzzle": "^6.2",
+        "php-http/curl-client": "^1.7",
         "m4tthumphrey/php-gitlab-api": "dev-master"
     }
 }