diff --git a/message_ix_models/model/transport/build.py b/message_ix_models/model/transport/build.py
index 31ad0060fb..92c0d95bb6 100644
--- a/message_ix_models/model/transport/build.py
+++ b/message_ix_models/model/transport/build.py
@@ -11,6 +11,7 @@
 
 from message_ix_models import Context, ScenarioInfo
 from message_ix_models.model import bare, build
+from message_ix_models.util import minimum_version
 from message_ix_models.util._logging import mark_time
 
 from . import Config
@@ -373,6 +374,7 @@ def add_structure(c: Computer):
     c.add("indexers::iea to transport", itemgetter(2), "groups::iea eweb")
 
 
+@minimum_version("message_ix 3.8")
 def get_computer(
     context: Context,
     obj: Optional[Computer] = None,
diff --git a/message_ix_models/tests/model/transport/test_build.py b/message_ix_models/tests/model/transport/test_build.py
index f6a8f1553c..c0825596ff 100644
--- a/message_ix_models/tests/model/transport/test_build.py
+++ b/message_ix_models/tests/model/transport/test_build.py
@@ -36,6 +36,7 @@ def test_make_spec(regions_arg, regions_exp, years):
     assert expected == spec["require"].set["node"]
 
 
+@build.get_computer.minimum_version
 @pytest.mark.parametrize(
     "regions, years, ldv, nonldv, solve",
     [
diff --git a/message_ix_models/tests/model/transport/test_data.py b/message_ix_models/tests/model/transport/test_data.py
index e9c27e5322..6e60720c31 100644
--- a/message_ix_models/tests/model/transport/test_data.py
+++ b/message_ix_models/tests/model/transport/test_data.py
@@ -3,13 +3,14 @@
 from genno import Key, Quantity
 from iam_units import registry
 
-from message_ix_models.model.transport import files, testing
+from message_ix_models.model.transport import build, files, testing
 from message_ix_models.model.transport.CHN_IND import get_chn_ind_data, get_chn_ind_pop
 from message_ix_models.model.transport.roadmap import get_roadmap_data
 from message_ix_models.model.transport.testing import MARK, assert_units
 from message_ix_models.project.navigate import T35_POLICY
 
 
+@build.get_computer.minimum_version
 @pytest.mark.parametrize("file", files.FILES, ids=lambda f: "-".join(f.parts))
 def test_data_files(test_context, file):
     """Input data can be read."""