diff --git a/alembic/env.py b/alembic/env.py
index 00d5ea9..67312d4 100644
--- a/alembic/env.py
+++ b/alembic/env.py
@@ -36,21 +36,21 @@ target_metadata = Base.metadata
 
 # this is to keep pycharm from complaining about/optimizing unused imports
 # noinspection PyStatementEffect
-(
-    User,
-    OAuthAccount,
-    IndexerQueryResult,
-    Torrent,
-    Show,
-    Season,
-    Episode,
-    SeasonFile,
-    SeasonRequest,
-    Movie,
-    MovieFile,
-    MovieRequest,
-    Notification,
-)
+__all__ = [
+    "User",
+    "OAuthAccount",
+    "IndexerQueryResult",
+    "Torrent",
+    "Show",
+    "Season",
+    "Episode",
+    "SeasonFile",
+    "SeasonRequest",
+    "Movie",
+    "MovieFile",
+    "MovieRequest",
+    "Notification",
+]
 
 
 # other values from the config, defined by the needs of env.py,
diff --git a/media_manager/movies/dependencies.py b/media_manager/movies/dependencies.py
index b6b3bca..eb25370 100644
--- a/media_manager/movies/dependencies.py
+++ b/media_manager/movies/dependencies.py
@@ -47,7 +47,7 @@ def get_movie_by_id(
         raise HTTPException(
             status_code=404,
             detail=f"Movie with ID {movie_id} not found.",
-        )
+        ) from None
     return movie
 
 
diff --git a/media_manager/movies/repository.py b/media_manager/movies/repository.py
index cbcf497..a7a799a 100644
--- a/media_manager/movies/repository.py
+++ b/media_manager/movies/repository.py
@@ -132,7 +132,7 @@ class MovieRepository:
             log.error(f"Integrity error while saving movie {movie.name}: {e}")
             raise ConflictError(
                 f"Movie with this primary key or unique constraint violation: {e.orig}"
-            )
+            ) from e
         except SQLAlchemyError as e:
             self.db.rollback()
             log.error(f"Database error while saving movie {movie.name}: {e}")
diff --git a/media_manager/notification/repository.py b/media_manager/notification/repository.py
index 577baad..4a8beca 100644
--- a/media_manager/notification/repository.py
+++ b/media_manager/notification/repository.py
@@ -71,7 +71,7 @@ class NotificationRepository:
             log.error(f"Could not save notification, Error: {e}")
             raise ConflictError(
                 f"Notification with id {notification.id} already exists."
-            )
+            ) from None
         return
 
     def mark_notification_as_read(self, id: NotificationId) -> None:
diff --git a/media_manager/torrent/dependencies.py b/media_manager/torrent/dependencies.py
index e9673b4..5f01fdf 100644
--- a/media_manager/torrent/dependencies.py
+++ b/media_manager/torrent/dependencies.py
@@ -39,7 +39,7 @@ def get_torrent_by_id(
     except NotFoundError:
         raise HTTPException(
             status_code=404, detail=f"Torrent with ID {torrent_id} not found"
-        )
+        ) from None
     return torrent
 
 
diff --git a/media_manager/tv/dependencies.py b/media_manager/tv/dependencies.py
index 527aff3..5285982 100644
--- a/media_manager/tv/dependencies.py
+++ b/media_manager/tv/dependencies.py
@@ -47,7 +47,7 @@ def get_show_by_id(
         raise HTTPException(
             status_code=404,
             detail=f"Show with ID {show_id} not found.",
-        )
+        ) from None
     return show
 
 
@@ -64,7 +64,7 @@ def get_season_by_id(
         raise HTTPException(
             status_code=404,
             detail=f"Season with ID {season_id} not found.",
-        )
+        ) from None
     return season
 
 
diff --git a/ruff.toml b/ruff.toml
index f351308..4b6312b 100644
--- a/ruff.toml
+++ b/ruff.toml
@@ -6,6 +6,7 @@ quote-style = "double"
 # to be enabled: A, ANN, ARG, BLE, C90, CPY, D, DOC, DTZ, FBT, G, INP, INT, N, PERF, PIE, PL, PTH, RET, RSE, SLF, SIM, TC, TRY, UP
 extend-select = [
     "ASYNC",
+    "B",
     "COM",
     "E", "EXE",
     "F", "FA", "FIX", "FLY", "FURB",
@@ -25,3 +26,6 @@ ignore = [
     # lines too long
     "E501",
 ]
+
+[lint.flake8-bugbear]
+extend-immutable-calls = ["fastapi.Depends", "fastapi.Path"]