diff --git a/packages/msgraph/composer.json b/packages/msgraph/composer.json
index e15a2d468..227b188af 100644
--- a/packages/msgraph/composer.json
+++ b/packages/msgraph/composer.json
@@ -22,7 +22,7 @@
         "moox/core": "dev-main",
         "moox/mail-inbox": "dev-main",
         "microsoft/microsoft-graph": "^2.0",
-        "guzzlehttp/guzzle": "^7.5",
+        "guzzlehttp/guzzle": "^8.0",
         "symfony/microsoft-graph-mailer": "^8.0"
     },
     "autoload": {