diff --git a/antarest/study/storage/rawstudy/model/filesystem/config/files.py b/antarest/study/storage/rawstudy/model/filesystem/config/files.py
index f6162d5637..3727f320ec 100644
--- a/antarest/study/storage/rawstudy/model/filesystem/config/files.py
+++ b/antarest/study/storage/rawstudy/model/filesystem/config/files.py
@@ -394,7 +394,14 @@ def _parse_renewables(root: Path, area: str) -> t.List[RenewableConfigType]:
     """
     Parse the renewables INI file, return an empty list if missing.
     """
+
+    # Before version 8.1, we only have "Load", "Wind" and "Solar" objects.
+    # We can't use renewable clusters.
     version = _parse_version(root)
+    if version < 810:
+        return []
+
+    # Since version 8.1 of the solver, we can use "renewable clusters" objects.
     relpath = Path(f"input/renewables/clusters/{area}/list.ini")
     config_dict: t.Dict[str, t.Any] = _extract_data_from_file(
         root=root,
diff --git a/tests/integration/variant_blueprint/test_renewable_cluster.py b/tests/integration/variant_blueprint/test_renewable_cluster.py
index bdefbb402f..3dab4a946b 100644
--- a/tests/integration/variant_blueprint/test_renewable_cluster.py
+++ b/tests/integration/variant_blueprint/test_renewable_cluster.py
@@ -4,7 +4,9 @@
 import pytest
 from starlette.testclient import TestClient
 
+from antarest.core.tasks.model import TaskStatus
 from antarest.study.storage.rawstudy.model.filesystem.config.model import transform_name_to_id
+from tests.integration.utils import wait_task_completion
 
 
 # noinspection SpellCheckingInspection
@@ -23,6 +25,22 @@ def test_lifecycle(
     ) -> None:
         # sourcery skip: extract-duplicate-method
 
+        # =======================
+        #  Study version upgrade
+        # =======================
+
+        # We have an "old" study that we need to upgrade to version 810
+        min_study_version = 810
+        res = client.put(
+            f"/v1/studies/{study_id}/upgrade",
+            headers={"Authorization": f"Bearer {user_access_token}"},
+            params={"target_version": min_study_version},
+        )
+        res.raise_for_status()
+        task_id = res.json()
+        task = wait_task_completion(client, user_access_token, task_id)
+        assert task.status == TaskStatus.COMPLETED, task
+
         # =====================
         #  General Data Update
         # =====================
diff --git a/tests/storage/rawstudies/samples/__init__.py b/tests/storage/rawstudies/samples/__init__.py
new file mode 100644
index 0000000000..773f16ec60
--- /dev/null
+++ b/tests/storage/rawstudies/samples/__init__.py
@@ -0,0 +1,3 @@
+from pathlib import Path
+
+ASSETS_DIR = Path(__file__).parent.resolve()
diff --git a/tests/storage/rawstudies/samples/v810/sample1/study.antares b/tests/storage/rawstudies/samples/v810/sample1/study.antares
index ae9f93dd07..a57109d3e4 100644
--- a/tests/storage/rawstudies/samples/v810/sample1/study.antares
+++ b/tests/storage/rawstudies/samples/v810/sample1/study.antares
@@ -1,5 +1,5 @@
 [antares]
-version = 800
+version = 810
 caption = renewable-2-clusters-ts-prod-factor
 created = 1618413128
 lastsave = 1625583204
diff --git a/tests/storage/rawstudies/test_factory.py b/tests/storage/rawstudies/test_factory.py
index b3fd356f4f..e2cd4391b3 100644
--- a/tests/storage/rawstudies/test_factory.py
+++ b/tests/storage/rawstudies/test_factory.py
@@ -1,4 +1,3 @@
-from pathlib import Path
 from unittest.mock import Mock
 
 from antarest.core.interfaces.cache import CacheConstants
@@ -7,10 +6,11 @@
 from antarest.study.storage.rawstudy.model.filesystem.context import ContextServer
 from antarest.study.storage.rawstudy.model.filesystem.factory import StudyFactory
 from antarest.study.storage.rawstudy.model.filesystem.root.filestudytree import FileStudyTree
+from tests.storage.rawstudies.samples import ASSETS_DIR
 
 
-def test_renewable_subtree():
-    path = Path(__file__).parent / "samples/v810/sample1"
+def test_renewable_subtree() -> None:
+    path = ASSETS_DIR / "v810/sample1"
     context: ContextServer = Mock(specs=ContextServer)
     config = build(path, "")
     assert config.get_renewable_ids("area") == ["la_rochelle", "oleron"]
@@ -41,8 +41,8 @@ def test_renewable_subtree():
     }
 
 
-def test_factory_cache():
-    path = Path(__file__).parent / "samples/v810/sample1"
+def test_factory_cache() -> None:
+    path = ASSETS_DIR / "v810/sample1"
 
     cache = Mock()
     factory = StudyFactory(matrix=Mock(), resolver=Mock(), cache=cache)
diff --git a/tests/storage/repository/filesystem/config/test_config_files.py b/tests/storage/repository/filesystem/config/test_config_files.py
index 1b87692900..4f88115291 100644
--- a/tests/storage/repository/filesystem/config/test_config_files.py
+++ b/tests/storage/repository/filesystem/config/test_config_files.py
@@ -363,7 +363,7 @@ def test_parse_thermal_860(tmp_path: Path, version, caplog) -> None:
 
 def test_parse_renewables(tmp_path: Path) -> None:
     study_path = build_empty_files(tmp_path)
-    study_path.joinpath("study.antares").write_text("[antares] \n version = 700")
+    study_path.joinpath("study.antares").write_text("[antares] \n version = 810")
     ini_path = study_path.joinpath("input/renewables/clusters/fr/list.ini")
 
     # Error case: `input/renewables/clusters/fr` directory is missing.