diff --git a/tests/pass_through_unit_tests/messages_api_structured_output/test_anthropic_api_structured_output.py b/tests/pass_through_unit_tests/messages_api_structured_output/test_anthropic_api_structured_output.py
index 6f3acd8232b..c67c60b49f4 100644
--- a/tests/pass_through_unit_tests/messages_api_structured_output/test_anthropic_api_structured_output.py
+++ b/tests/pass_through_unit_tests/messages_api_structured_output/test_anthropic_api_structured_output.py
@@ -26,4 +26,4 @@ class TestAnthropicAPIStructuredOutput(BaseAnthropicMessagesStructuredOutputTest
     """
 
     def get_model(self) -> str:
-        return "claude-3-5-sonnet-20241022"
\ No newline at end of file
+        return "claude-sonnet-4-5-20250929"
\ No newline at end of file