diff --git a/tests/serialization/test_dag_serialization.py b/tests/serialization/test_dag_serialization.py
index 65f05637b80..e6159a6a725 100644
--- a/tests/serialization/test_dag_serialization.py
+++ b/tests/serialization/test_dag_serialization.py
@@ -303,7 +303,6 @@ def sorted_serialized_dag(dag_dict: dict):
 
         assert sorted_serialized_dag(ground_truth_dag) == sorted_serialized_dag(json_dag)
 
-    @pytest.mark.quarantined
     def test_deserialization_across_process(self):
         """A serialized DAG can be deserialized in another process."""