diff --git a/libs/partners/anthropic/tests/unit_tests/test_chat_models.py b/libs/partners/anthropic/tests/unit_tests/test_chat_models.py
index 071c86c2507..e08de12cf3a 100644
--- a/libs/partners/anthropic/tests/unit_tests/test_chat_models.py
+++ b/libs/partners/anthropic/tests/unit_tests/test_chat_models.py
@@ -6,4 +6,4 @@ from langchain_anthropic.chat_models import ChatAnthropic
 
 def test_integration_initialization() -> None:
     """Test chat model initialization."""
-    ChatAnthropic()
+    ChatAnthropic(anthropic_api_key="foo")