diff --git a/src/app/services.py b/src/app/services.py
index f96b22d..88952d9 100644
--- a/src/app/services.py
+++ b/src/app/services.py
@@ -145,7 +145,7 @@ async def update_sequences(ctx) -> bool:
     return True
 
 
-async def update(ctx) -> bool:
+async def update(ctx: dict, *args, **kwargs) -> bool:
     arq_pool: ArqRedis = ctx["arc_pool"]
 
     await arq_pool.enqueue_job("update_books")
diff --git a/src/core/setup_arq.py b/src/core/setup_arq.py
index 9e1c1af..b17a230 100644
--- a/src/core/setup_arq.py
+++ b/src/core/setup_arq.py
@@ -14,6 +14,4 @@ class WorkerSettings:
     redis_settings = get_redis_settings()
     max_jobs = 3
     job_timeout = 15 * 60
-    cron_jobs = [
-        cron("update", hour={6}, minute=0)
-    ]
+    cron_jobs = [cron(update, hour={6}, minute=0)]