diff --git a/composer.json b/composer.json
index aa86447..650ad6d 100644
--- a/composer.json
+++ b/composer.json
@@ -11,10 +11,10 @@
   "require": {
     "php": ">=8.2",
     "stevenmaguire/oauth2-keycloak": "^5.1",
-    "symfony/routing": "^7.2",
-    "symfony/security-bundle": "^7.2",
-    "symfony/http-kernel": "^7.2",
-    "symfony/framework-bundle": "^7.2",
+    "symfony/routing": "^6.4 || ^7.2",
+    "symfony/security-bundle": "^6.4 || ^7.2",
+    "symfony/http-kernel": "^6.4 || ^7.2",
+    "symfony/framework-bundle": "^6.4 || ^7.2",
     "symfony/serializer-pack": "^1.3"
   },
   "require-dev": {
diff --git a/src/DTO/UserRepresentationDTO.php b/src/DTO/UserRepresentationDTO.php
index 9e45d15..43cc971 100644
--- a/src/DTO/UserRepresentationDTO.php
+++ b/src/DTO/UserRepresentationDTO.php
@@ -18,9 +18,9 @@ public function __construct(
         public string $id,
         public string $username,
         public bool $emailVerified,
-        public string $name,
-        public string $firstName,
-        public string $lastName,
+        public ?string $name,
+        public ?string $firstName,
+        public ?string $lastName,
         public string $email,
         public ?bool $enabled,
         public ?int $createdTimestamp,
@@ -85,9 +85,9 @@ public static function fromArray(array $data, ?string $client_id = null): self
             id: $data['sub'],
             username: $data['preferred_username'],
             emailVerified: $data['email_verified'],
-            name: $data['name'],
-            firstName: $data['given_name'],
-            lastName: $data['family_name'],
+            name: $data['name'] ?? null,
+            firstName: $data['given_name'] ?? null,
+            lastName: $data['family_name'] ?? null,
             email: $data['email'],
             enabled: $data['enabled'] ?? null,
             createdTimestamp: $data['createdTimestamp'] ?? null,
diff --git a/src/Interface/IamClientInterface.php b/src/Interface/IamClientInterface.php
index 5675df8..abdb8a5 100644
--- a/src/Interface/IamClientInterface.php
+++ b/src/Interface/IamClientInterface.php
@@ -13,7 +13,7 @@ public function refreshToken(AccessTokenInterface $token): ?AccessTokenInterface
 
     public function verifyToken(AccessTokenInterface $token): ?UserRepresentationDTO;
 
-    public function userInfo(AccessTokenInterface $token): ?UserRepresentationDTO;
+    public function userInfo(AccessTokenInterface $token, bool $mapToDto = true): null|array|UserRepresentationDTO;
 
     public function fetchUserFromToken(AccessTokenInterface $token): ?KeycloakResourceOwner;
 
diff --git a/src/Provider/KeycloakClient.php b/src/Provider/KeycloakClient.php
index 4d066ab..9dc9223 100644
--- a/src/Provider/KeycloakClient.php
+++ b/src/Provider/KeycloakClient.php
@@ -124,7 +124,7 @@ public function verifyToken(AccessTokenInterface $token): ?UserRepresentationDTO
         }
     }
 
-    public function userInfo(AccessTokenInterface $token): ?UserRepresentationDTO
+    public function userInfo(AccessTokenInterface $token, bool $mapToDto = true): null|array|UserRepresentationDTO
     {
         try {
             $this->verifyToken($token);
@@ -140,6 +140,10 @@ public function userInfo(AccessTokenInterface $token): ?UserRepresentationDTO
                 'user' => $user->toArray(),
             ]);
 
+            if (!$mapToDto) {
+                return $user->toArray();
+            }
+
             return UserRepresentationDTO::fromArray($user->toArray(), $this->client_id);
         }
         catch (\Exception $e) {
diff --git a/src/Service/Service.php b/src/Service/Service.php
index d47d1c7..6156a83 100644
--- a/src/Service/Service.php
+++ b/src/Service/Service.php
@@ -51,7 +51,7 @@ protected function executeQuery(string $path, string $returnType, ?Criteria $cri
                 'response' => $content,
             ]);
 
-            if (empty($content)) {
+            if ($content === '' || $content === null) {
                 throw new \UnexpectedValueException('Empty response');
             }