diff --git a/cosmos/listeners/dag_run_listener.py b/cosmos/listeners/dag_run_listener.py
index f8020e513..762c3dbf3 100644
--- a/cosmos/listeners/dag_run_listener.py
+++ b/cosmos/listeners/dag_run_listener.py
@@ -52,16 +52,24 @@ def on_dag_run_success(dag_run: DagRun, msg: str) -> None:
     logger.info("The on_dag_run_success was called")
 
     dag = dag_run.get_dag()
+
     logger.info(f"dir: {dir(dag)}")
     logger.info(f"1: {dag.fileloc}")
     logger.info(f"2:{dag.filepath}")
     logger.info(f"3: {dag.task_dict}")
     logger.info(f"4: {dag.task_group_dict}")
-    logger.info(f"5: {dag.serialize_to_json()}")
-    logger.info(f"6: {dag.deserialize_dag()}")
+    logger.info(f"5: {dag.get_serialized_fields()}")
+    logger.info(f"6: {dag.to_dict()}")
+    logger.info(f"7: {dag.deserialize()}")
+
+    if not isinstance(dag, DAG):
+        from airflow.models import DagBag
 
-    if not uses_cosmos(dag):
         logger.info("The DAG does not use Cosmos")
+        dag_bag = DagBag(dag_folder=dag.fileloc, include_examples=False)
+        dag = dag_bag.get_dag(dag_run.dag_id)
+
+    if not uses_cosmos(dag):
         return
 
     additional_telemetry_metrics = {