diff --git a/tests/conftest.py b/tests/conftest.py
index 1e07bf7e4..49a8bd299 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -10,7 +10,7 @@
 
 
 @pytest.mark.requiressecrets
-@pytest.fixture(scope="session")
+@pytest.fixture
 def file_nc_era5_pattern(tmp_path):
     date_min = '2010-01-31'
     date_max = '2010-02-01'