diff --git a/examples/pipelines/logistic_stats/pipeline.py b/examples/pipelines/logistic_stats/pipeline.py
index b882161..0faf346 100644
--- a/examples/pipelines/logistic_stats/pipeline.py
+++ b/examples/pipelines/logistic_stats/pipeline.py
@@ -113,9 +113,9 @@ def model(dhis2_data: dict[str, typing.Any], gadm_data, worldpop_data):
     population_df = pd.Series(data=[stat["sum"] for stat in stats], index=administrative_areas.index)
     population_df = pd.DataFrame({"District": administrative_areas["NAME_2"], "Population": population_df})
     corrected_population_df = population_df.copy()
-    corrected_population_df.loc[
-        corrected_population_df["District"].str.startswith("Western"), "District"
-    ] = "Western Area"
+    corrected_population_df.loc[corrected_population_df["District"].str.startswith("Western"), "District"] = (
+        "Western Area"
+    )
 
     corrected_population_df = corrected_population_df.groupby("District").sum()
 
diff --git a/openhexa/sdk/pipelines/parameter.py b/openhexa/sdk/pipelines/parameter.py
index de9a77e..f6451f2 100644
--- a/openhexa/sdk/pipelines/parameter.py
+++ b/openhexa/sdk/pipelines/parameter.py
@@ -442,7 +442,6 @@ def to_dict(self) -> dict[str, typing.Any]:
             "multiple": self.multiple,
         }
 
-
     def _validate_single(self, value: typing.Any):
         # Normalize empty values to None and handles default
         normalized_value = self.type.normalize(value)
diff --git a/openhexa/sdk/pipelines/runtime.py b/openhexa/sdk/pipelines/runtime.py
index 780eafd..a8e8659 100644
--- a/openhexa/sdk/pipelines/runtime.py
+++ b/openhexa/sdk/pipelines/runtime.py
@@ -190,7 +190,8 @@ def get_pipeline(pipeline_path: Path) -> Pipeline:
                     help=args.get("help"),
                     default=args.get("default"),
                     required=args.get("required") if args.get("required") is not None else True,
-                    multiple=args.get("multiple") if args.get("multiple") is not None else False,)
+                    multiple=args.get("multiple") if args.get("multiple") is not None else False,
+                )
                 pipelines_parameters.append(parameter)
 
             pipeline = Pipeline(parameters=pipelines_parameters, function=None, **pipeline_decorator_spec["args"])
diff --git a/tests/test_ast.py b/tests/test_ast.py
index f9e03e2..91195c9 100644
--- a/tests/test_ast.py
+++ b/tests/test_ast.py
@@ -38,8 +38,15 @@ def test_pipeline_no_parameters(self):
                 )
             pipeline = get_pipeline(tmpdirname)
             self.assertEqual(
-                pipeline.to_dict(), {"code": "test", "name": "Test pipeline", "function": None,
-                                     "tasks": [], "parameters": [], "timeout": None}
+                pipeline.to_dict(),
+                {
+                    "code": "test",
+                    "name": "Test pipeline",
+                    "function": None,
+                    "tasks": [],
+                    "parameters": [],
+                    "timeout": None,
+                },
             )
 
     def test_pipeline_with_args(self):
@@ -59,8 +66,15 @@ def test_pipeline_with_args(self):
                 )
             pipeline = get_pipeline(tmpdirname)
             self.assertEqual(
-                pipeline.to_dict(), {"code": "test", "function": None,
-                                     "tasks": [], "name": "Test pipeline", "parameters": [], "timeout": None}
+                pipeline.to_dict(),
+                {
+                    "code": "test",
+                    "function": None,
+                    "tasks": [],
+                    "name": "Test pipeline",
+                    "parameters": [],
+                    "timeout": None,
+                },
             )
 
     def test_pipeline_with_invalid_parameter_args(self):
@@ -291,8 +305,8 @@ def test_pipeline_with_timeout(self):
                     "parameters": [],
                     "timeout": 42,
                     "function": None,
-                    "tasks": []
-                }
+                    "tasks": [],
+                },
             )
 
     def test_pipeline_with_bool(self):
@@ -361,7 +375,7 @@ def test_pipeline_with_multiple_parameters(self):
                     "code": "test",
                     "name": "Test pipeline",
                     "function": None,
-                    "tasks" : [],
+                    "tasks": [],
                     "parameters": [
                         {
                             "choices": None,