diff --git a/plugins/avatars/index.php b/plugins/avatars/index.php
index 5e66ed3e5..f66b1cfcf 100644
--- a/plugins/avatars/index.php
+++ b/plugins/avatars/index.php
@@ -273,7 +273,7 @@ private function getAvatar(string $sEmail, bool $bBimi, string $sBimiSelector =
 			}
 
 			if ($this->Config()->Get('plugin', 'gravatar', false)) {
-				$aUrls[] = 'https://gravatar.com/avatar/'.\md5(\strtolower($sAsciiEmail)).'?s=80&d=404';
+				$aUrls[] = 'https://gravatar.com/avatar/'.\hash('sha256', \strtolower($sAsciiEmail)).'?s=80&d=404';
 			}
 
 			foreach ($aUrls as $sUrl) {