diff --git a/spiffworkflow-backend/src/spiffworkflow_backend/data_stores/crud.py b/spiffworkflow-backend/src/spiffworkflow_backend/data_stores/crud.py
index 4c718aab7..c014545ba 100644
--- a/spiffworkflow-backend/src/spiffworkflow_backend/data_stores/crud.py
+++ b/spiffworkflow-backend/src/spiffworkflow_backend/data_stores/crud.py
@@ -3,9 +3,9 @@
 
 class DataStoreCRUD:
     @staticmethod
-    def create_instance(name: str, identifier: str, location: str, schema: dict[str, Any], description: str | None):
+    def create_instance(name: str, identifier: str, location: str, schema: dict[str, Any], description: str | None) -> None:
         raise Exception("must implement")
-    
+
     @staticmethod
     def existing_data_stores() -> list[dict[str, Any]]:
         raise Exception("must implement")
diff --git a/spiffworkflow-backend/src/spiffworkflow_backend/data_stores/json.py b/spiffworkflow-backend/src/spiffworkflow_backend/data_stores/json.py
index f6861b8eb..60a85982a 100644
--- a/spiffworkflow-backend/src/spiffworkflow_backend/data_stores/json.py
+++ b/spiffworkflow-backend/src/spiffworkflow_backend/data_stores/json.py
@@ -34,7 +34,7 @@ def _data_store_location_for_task(spiff_task: SpiffTask, identifier: str) -> str
     if _data_store_exists_at_location(location, identifier):
         return location
     location = ReferenceCacheService.upsearch(location, identifier, "data_store")
-    #if location is None or not _data_store_exists_at_location(location, identifier):
+    # if location is None or not _data_store_exists_at_location(location, identifier):
     #    return None
     return location
 
@@ -43,7 +43,7 @@ class JSONDataStore(BpmnDataStoreSpecification, DataStoreCRUD):  # type: ignore
     """JSONDataStore."""
 
     @staticmethod
-    def create_instance(name: str, identifier: str, location: str, schema: dict[str, Any], description: str | None):
+    def create_instance(name: str, identifier: str, location: str, schema: dict[str, Any], description: str | None) -> None:
         model = JSONDataStoreModel(
             name=name,
             identifier=identifier,
@@ -54,7 +54,7 @@ def create_instance(name: str, identifier: str, location: str, schema: dict[str,
         )
         db.session.add(model)
         db.session.commit()
-    
+
     @staticmethod
     def existing_data_stores() -> list[dict[str, Any]]:
         data_stores = []
diff --git a/spiffworkflow-backend/src/spiffworkflow_backend/routes/data_store_controller.py b/spiffworkflow-backend/src/spiffworkflow_backend/routes/data_store_controller.py
index 2c757905f..a31a965ce 100644
--- a/spiffworkflow-backend/src/spiffworkflow_backend/routes/data_store_controller.py
+++ b/spiffworkflow-backend/src/spiffworkflow_backend/routes/data_store_controller.py
@@ -83,7 +83,7 @@ def data_store_create(body: dict) -> flask.wrappers.Response:
             "A valid JSON Schema is required when creating a new data store instance.",
             status_code=400,
         ) from e
-    
+
     try:
         schema = json.loads(schema)
     except Exception as e: