diff --git a/backend/src/core/superset_client/_base.py b/backend/src/core/superset_client/_base.py
index b23ff715..2d1fbdc1 100644
--- a/backend/src/core/superset_client/_base.py
+++ b/backend/src/core/superset_client/_base.py
@@ -272,5 +272,12 @@ class SupersetClientBase:
             )
             return data
     # #endregion SupersetClientGetAllResources
+
+    # #region aclose [TYPE Function]
+    # @PURPOSE Close async HTTP transport.
+    # @POST Underlying AsyncAPIClient session is closed.
+    async def aclose(self) -> None:
+        await self.client.aclose()
+    # #endregion aclose
 # #endregion SupersetClientBase
 # #endregion SupersetClientBase