diff --git a/asdf/_tests/test_schema.py b/asdf/_tests/test_schema.py
index 7517d21a2..0d484febb 100644
--- a/asdf/_tests/test_schema.py
+++ b/asdf/_tests/test_schema.py
@@ -634,7 +634,7 @@ class DefaultExtension:
   j:
     l: 362
         """
-        buff = yaml_to_asdf(yaml, standard_version="1.5.0")
+        buff = yaml_to_asdf(yaml, version="1.5.0")
         with asdf.open(buff) as ff:
             assert "a" in ff.tree["custom"]
             assert ff.tree["custom"]["a"] == 42