diff --git a/examples/chat/persistent-chat-cache.php b/examples/chat/persistent-chat-cache.php
index 9c9178de1..0ce491ff2 100644
--- a/examples/chat/persistent-chat-cache.php
+++ b/examples/chat/persistent-chat-cache.php
@@ -24,7 +24,7 @@
 $store = new CacheStore(new ArrayAdapter(), 'chat');
 $store->setup();
 
-$agent = new Agent($platform, 'gpt-4o-mini', logger: logger());
+$agent = new Agent($platform, 'gpt-4o-mini');
 $chat = new Chat($agent, $store);
 
 $messages = new MessageBag(
diff --git a/examples/chat/persistent-chat-session.php b/examples/chat/persistent-chat-session.php
index b0d4f7eb2..cf315cb7b 100644
--- a/examples/chat/persistent-chat-session.php
+++ b/examples/chat/persistent-chat-session.php
@@ -33,7 +33,7 @@
 $store = new SessionStore($requestStack, 'chat');
 $store->setup();
 
-$agent = new Agent($platform, 'gpt-4o-mini', logger: logger());
+$agent = new Agent($platform, 'gpt-4o-mini');
 $chat = new Chat($agent, $store);
 
 $messages = new MessageBag(