diff --git a/composer.json b/composer.json
index f3ca781..6960131 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,8 @@
     ],
     "require": {
         "ext-curl": "*",
-        "kbsali/redmine-api": "^2.7"
+        "kbsali/redmine-api": "^2.7",
+        "guzzlehttp/guzzle": "^7"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5 || ^10",