diff --git a/composer.json b/composer.json
index 8f93b6ef..fd0f213e 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
     "require": {
         "php": "^8.2",
         "ext-simplexml": "*",
-        "guzzlehttp/guzzle": "^7.5",
+        "guzzlehttp/guzzle": "^8.0",
         "jajo/jsondb": "^3.0",
         "kamermans/guzzle-oauth2-subscriber": "^1.0",
         "league/period": "^5.0",