diff --git a/composer.json b/composer.json
index cfafe40..958f8c3 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         "keycloak"
     ],
     "require": {
-        "league/oauth2-client": "^2.0 <2.3.0",
+        "league/oauth2-client": "^2.0",
         "firebase/php-jwt": "~4.0|~5.0"
     },
     "require-dev": {
diff --git a/test/src/Provider/KeycloakTest.php b/test/src/Provider/KeycloakTest.php
index 4c78b3e..01f6b62 100644
--- a/test/src/Provider/KeycloakTest.php
+++ b/test/src/Provider/KeycloakTest.php
@@ -132,7 +132,7 @@ public function testEncryptionKeyPathFails()
 
         public function testScopes()
         {
-            $scopeSeparator = ',';
+            $scopeSeparator = ' ';
             $options = ['scope' => [uniqid(), uniqid()]];
             $query = ['scope' => implode($scopeSeparator, $options['scope'])];
             $url = $this->provider->getAuthorizationUrl($options);