diff --git a/src/cache.py b/src/cache.py
index b8ed4f9..bfc0a00 100644
--- a/src/cache.py
+++ b/src/cache.py
@@ -74,8 +74,8 @@ def wrapper(*args, **kwargs):  # noqa
         request = route_variables.get("request", None)
         save_api_call_to_db(session=session, user=user, request=request)
 
-        if 'background_tasks' in route_variables:
-            route_variables['background_tasks'].add_task(cache_response, last_updated)
+        if "background_tasks" in route_variables:
+            route_variables["background_tasks"].add_task(cache_response, last_updated)
 
         # drop session and user
         for var in ["session", "user", "request"]: