diff --git a/composer.json b/composer.json
index a56db44..5113acb 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,8 @@
     "require": {
         "php": "^8.1",
         "silverstripe/admin": "^2",
-        "silverstripe/framework": "^5.1",
+        "silverstripe/framework": "^5.3",
+        "symfony/http-foundation": "^6.1",
         "ua-parser/uap-php": "^3.9.14"
     },
     "require-dev": {
diff --git a/src/Models/LoginSession.php b/src/Models/LoginSession.php
index 39038d5..5f4a6cb 100644
--- a/src/Models/LoginSession.php
+++ b/src/Models/LoginSession.php
@@ -15,7 +15,7 @@
 use SilverStripe\ORM\FieldType\DBDatetime;
 use SilverStripe\Security\RememberLoginHash;
 use SilverStripe\SessionManager\Security\LogInAuthenticationHandler;
-use SilverStripe\Control\Util\IPUtils;
+use Symfony\Component\HttpFoundation\IpUtils;
 
 /**
  * Tracks a login session for a specific user on a specific device.