diff --git a/tests/tests_water_bodies.py b/tests/tests_water_bodies.py
index 4122786..173963c 100644
--- a/tests/tests_water_bodies.py
+++ b/tests/tests_water_bodies.py
@@ -34,7 +34,8 @@ def _(self, message):
         )
         os.environ["ARGO_CWL_RUNNER_TEMPLATE"] = "argo-cwl-runner-stage-in-out"
         os.environ["DEFAULT_VOLUME_SIZE"] = "12Gi"
-
+        os.environ["STORAGE_CLASS"] = "standard"
+        
         cls.zoo = zoo
 
         conf = {}