diff --git a/tests/test_ontology.py b/tests/test_ontology.py
index b9d6500..10e988e 100644
--- a/tests/test_ontology.py
+++ b/tests/test_ontology.py
@@ -1,11 +1,20 @@
+from pathlib import Path
+
 import bionty.base as bt_base
 from bionty.base.dev._io import s3_bionty_assets
 
 
 def test_ontology():
     localpath = s3_bionty_assets("ontology_all__pw__7.79__Pathway")
-    onto = bt_base.Ontology(localpath)
-    assert onto.get_term("PW:0000014").name == "neurodegenerative pathway"
-    df = onto.to_df(source="pw", include_id_prefixes={"pw": ["PW"]})
-    assert df.shape == (2647, 4)
-    assert df.index.name == "ontology_id"
+
+    try:
+        onto = bt_base.Ontology(localpath)
+        assert onto.get_term("PW:0000014").name == "neurodegenerative pathway"
+
+        df = onto.to_df(source="pw", include_id_prefixes={"pw": ["PW"]})
+        assert df.shape == (2647, 4)
+        assert df.index.name == "ontology_id"
+
+    finally:
+        if Path(localpath).exists:
+            Path(localpath).unlink()