diff --git a/src/backend/base/langflow/services/monitor/schema.py b/src/backend/base/langflow/services/monitor/schema.py
index 2c3396c7d..4cb057ccc 100644
--- a/src/backend/base/langflow/services/monitor/schema.py
+++ b/src/backend/base/langflow/services/monitor/schema.py
@@ -36,6 +36,7 @@ class TransactionModel(BaseModel):
             return json.dumps(v)
         return v
 
+
 class TransactionModelResponse(BaseModel):
     index: Optional[int] = Field(default=None)
     timestamp: Optional[datetime] = Field(default_factory=datetime.now, alias="timestamp")
diff --git a/src/backend/base/langflow/services/monitor/service.py b/src/backend/base/langflow/services/monitor/service.py
index 6f1152fe6..6c37672af 100644
--- a/src/backend/base/langflow/services/monitor/service.py
+++ b/src/backend/base/langflow/services/monitor/service.py
@@ -168,8 +168,9 @@ class MonitorService(Service):
         order_by: Optional[str] = "timestamp",
         flow_id: Optional[str] = None,
     ):
-
-        query = "SELECT index,flow_id, status, error, timestamp, vertex_id, inputs, outputs, target_id FROM transactions"
+        query = (
+            "SELECT index,flow_id, status, error, timestamp, vertex_id, inputs, outputs, target_id FROM transactions"
+        )
         conditions = []
         if source:
             conditions.append(f"source = '{source}'")
diff --git a/src/backend/base/langflow/services/monitor/utils.py b/src/backend/base/langflow/services/monitor/utils.py
index 8d62083d2..706d62348 100644
--- a/src/backend/base/langflow/services/monitor/utils.py
+++ b/src/backend/base/langflow/services/monitor/utils.py
@@ -180,7 +180,6 @@ def build_clean_params(target: "Vertex") -> dict:
 
 def log_transaction(flow_id, vertex: "Vertex", status, target: Optional["Vertex"] = None, error=None):
     try:
-
         monitor_service = get_monitor_service()
         clean_params = build_clean_params(vertex)
         data = {
@@ -191,7 +190,7 @@ def log_transaction(flow_id, vertex: "Vertex", status, target: Optional["Vertex"
             "timestamp": monitor_service.get_timestamp(),
             "status": status,
             "error": error,
-            "flow_id": flow_id
+            "flow_id": flow_id,
         }
         monitor_service.add_row(table_name="transactions", data=data)
     except Exception as e: