diff --git a/requests_ratelimiter/requests_ratelimiter.py b/requests_ratelimiter/requests_ratelimiter.py
index 6dfbacc..1086c1d 100644
--- a/requests_ratelimiter/requests_ratelimiter.py
+++ b/requests_ratelimiter/requests_ratelimiter.py
@@ -168,14 +168,14 @@ class LimiterSession(LimiterMixin, Session):
         per_host: Track request rate limits separately for each host
         limit_statuses: Alternative HTTP status codes that indicate a rate limit was exceeded
     """
-    
+
     __attrs__ = Session.__attrs__ + [
         'limiter',
         'limit_statuses',
         'max_delay',
         'per_host',
         'bucket_name',
-        '_default_bucket'
+        '_default_bucket',
     ]
 
 
diff --git a/test/test_requests_ratelimiter.py b/test/test_requests_ratelimiter.py
index b0050e7..3c9f84e 100644
--- a/test/test_requests_ratelimiter.py
+++ b/test/test_requests_ratelimiter.py
@@ -264,7 +264,7 @@ def test_pickling_and_unpickling():
     assert pickled_session is not None
     unpickled_session = pickle.loads(pickled_session)
     assert unpickled_session is not None
-    
+
     # Check that the unpickled instance has the same attributes
     assert unpickled_session.per_host == session.per_host
     assert unpickled_session.max_delay == session.max_delay