diff --git a/Classes/AvatarProvider/GravatarProvider.php b/Classes/AvatarProvider/GravatarProvider.php
index bbd02edb..7cdb8678 100644
--- a/Classes/AvatarProvider/GravatarProvider.php
+++ b/Classes/AvatarProvider/GravatarProvider.php
@@ -50,7 +50,7 @@ final public function __construct()
         );
         $this->avatarResourceResolver = GeneralUtility::makeInstance(
             GravatarResourceResolver::class,
-            GeneralUtility::makeInstance(GuzzleClientFactory::class)->getClient(),
+            GeneralUtility::makeInstance(GuzzleClientFactory::class)::getClient(),
             GeneralUtility::makeInstance(RequestFactory::class)
         );