diff --git a/fink_mm/observatory/LVK/LVK.py b/fink_mm/observatory/LVK/LVK.py
index 4173e957..e8e411b0 100644
--- a/fink_mm/observatory/LVK/LVK.py
+++ b/fink_mm/observatory/LVK/LVK.py
@@ -20,7 +20,7 @@
 from datetime import datetime
 
 
-def gcn_from_hdfs(client: InsecureClient, root_path: str, triggerId: str, triggerTime: datetime, gcn_status: str)->pd.DataFrame:
+def gcn_from_hdfs(client: InsecureClient, root_path: str, triggerId: str, triggerTime: datetime, gcn_status: str) -> pd.DataFrame:
     path_date = os.path.join(
         root_path,
         f"year={triggerTime.year:04d}/month={triggerTime.month:02d}/day={triggerTime.day:02d}",
diff --git a/fink_mm/utils/application.py b/fink_mm/utils/application.py
index dde6d260..c927f313 100644
--- a/fink_mm/utils/application.py
+++ b/fink_mm/utils/application.py
@@ -13,7 +13,9 @@ class Application(Flag):
     JOIN = auto()
     DISTRIBUTION = auto()
 
-    def build_application(self, logger: LoggerNewLine, data_mode: DataMode = None, **kwargs) -> str:
+    def build_application(
+        self, logger: LoggerNewLine, data_mode: DataMode = None, **kwargs
+    ) -> str:
         """
         Return the command line application
 
diff --git a/fink_mm/utils/fun_utils.py b/fink_mm/utils/fun_utils.py
index 192fc1fb..e3f4e1de 100644
--- a/fink_mm/utils/fun_utils.py
+++ b/fink_mm/utils/fun_utils.py
@@ -345,7 +345,7 @@ def get_association_proba(
     jdstarthist: pd.Series,
     hdfs_adress: pd.Series,
     gcn_status: pd.Series,
-    root_path: pd.Series
+    root_path: pd.Series,
 ) -> pd.Series:
     """
     Compute the association probability between the ztf alerts and the gcn events.
@@ -431,7 +431,7 @@ def get_association_proba(
                 z_trigger_time,
                 hdfs_adress=hdfs_adress.values[0],
                 gcn_status=status,
-                root_path=root
+                root_path=root,
             )
             for obs, event, z_ra, z_dec, z_trigger_time, status, root in zip(
                 obsname, rawEvent, ztf_ra, ztf_dec, jdstarthist, gcn_status, root_path
@@ -726,11 +726,7 @@ def format_rate_results(spark_df, rate_column):
     )
 
 
-def join_post_process(
-    df_grb: DataFrame,
-    hdfs_adress: str,
-    root_path: str
-) -> DataFrame:
+def join_post_process(df_grb: DataFrame, hdfs_adress: str, root_path: str) -> DataFrame:
     """
     Post processing after the join, used by offline and online
 
@@ -807,7 +803,7 @@ def join_post_process(
             df_grb["start_vartime"],
             F.lit(hdfs_adress),
             df_grb["gcn_status"],
-            F.lit(root_path)
+            F.lit(root_path),
         ),
     )
 
diff --git a/fink_mm/ztf_join_gcn.py b/fink_mm/ztf_join_gcn.py
index e9685b1f..30734b97 100644
--- a/fink_mm/ztf_join_gcn.py
+++ b/fink_mm/ztf_join_gcn.py
@@ -321,7 +321,7 @@ def print_logs():
                 df_join["rb"],
                 df_join["gcn_loc_error"],
                 df_join["p_assoc"],
-                df_join["rate"]
+                df_join["rate"],
             ),
         )