diff --git a/python/langsmith/evaluation/evaluator.py b/python/langsmith/evaluation/evaluator.py
index 0300de424..13aa8c41e 100644
--- a/python/langsmith/evaluation/evaluator.py
+++ b/python/langsmith/evaluation/evaluator.py
@@ -666,7 +666,7 @@ async def awrapper(
                     "example": example,
                     "inputs": example.inputs if example else {},
                     "outputs": run.outputs or {},
-                    "attachments": example.attachments_info or {} if example else {},
+                    "attachments": example.attachment_urls or {} if example else {},
                     "reference_outputs": example.outputs or {} if example else {},
                 }
                 args = (arg_map[arg] for arg in positional_args)
@@ -687,7 +687,7 @@ def wrapper(run: Run, example: Example) -> _RUNNABLE_OUTPUT:
                     "example": example,
                     "inputs": example.inputs if example else {},
                     "outputs": run.outputs or {},
-                    "attachments": example.attachments_info or {},
+                    "attachments": example.attachment_urls or {},
                     "reference_outputs": example.outputs or {} if example else {},
                 }
                 args = (arg_map[arg] for arg in positional_args)