diff --git a/langfuse/serializer.py b/langfuse/serializer.py
index 5aa5efd8..4536ff97 100644
--- a/langfuse/serializer.py
+++ b/langfuse/serializer.py
@@ -138,7 +138,7 @@ def default(self, obj: Any):
 
         except Exception as e:
             print(obj.__dict__)
-            logger.warning(
+            logger.debug(
                 f"Serialization failed for object of type {type(obj).__name__}",
                 exc_info=e,
             )