diff --git a/bluepysnap/circuit_validation.py b/bluepysnap/circuit_validation.py
index f7af2b07..0040e412 100644
--- a/bluepysnap/circuit_validation.py
+++ b/bluepysnap/circuit_validation.py
@@ -2,6 +2,7 @@
 
 The idea here is to not depend on libsonata if possible, so we can use this in all situations
 """
+
 import logging
 from pathlib import Path
 
diff --git a/bluepysnap/cli.py b/bluepysnap/cli.py
index be6d1307..669e8172 100644
--- a/bluepysnap/cli.py
+++ b/bluepysnap/cli.py
@@ -1,4 +1,5 @@
 """The project's command line launcher."""
+
 import functools
 import logging
 
diff --git a/bluepysnap/query.py b/bluepysnap/query.py
index 079b62c5..eed9a3c3 100644
--- a/bluepysnap/query.py
+++ b/bluepysnap/query.py
@@ -1,4 +1,5 @@
 """Module to process search queries of nodes/edges."""
+
 import operator
 from collections.abc import Mapping
 from copy import deepcopy
diff --git a/bluepysnap/schemas/__init__.py b/bluepysnap/schemas/__init__.py
index 62cb5d4c..0df785bd 100644
--- a/bluepysnap/schemas/__init__.py
+++ b/bluepysnap/schemas/__init__.py
@@ -1,4 +1,5 @@
 """Schemas and schema parser."""
+
 from bluepysnap.schemas.schemas import (
     validate_circuit_schema,
     validate_edges_schema,
diff --git a/bluepysnap/schemas/schemas.py b/bluepysnap/schemas/schemas.py
index 222ee90b..1531b6aa 100644
--- a/bluepysnap/schemas/schemas.py
+++ b/bluepysnap/schemas/schemas.py
@@ -1,4 +1,5 @@
 """Functions for schema based validation of circuit files."""
+
 from pathlib import Path
 
 import h5py
diff --git a/bluepysnap/simulation_validation.py b/bluepysnap/simulation_validation.py
index 6f8b217f..63a23aa8 100644
--- a/bluepysnap/simulation_validation.py
+++ b/bluepysnap/simulation_validation.py
@@ -1,4 +1,5 @@
 """Standalone module that validates Sonata simulation. See ``validate-simulation`` function."""
+
 import contextlib
 import io
 import os
diff --git a/tests/data/reporting/create_reports.py b/tests/data/reporting/create_reports.py
index 401ec433..761da564 100644
--- a/tests/data/reporting/create_reports.py
+++ b/tests/data/reporting/create_reports.py
@@ -1,4 +1,5 @@
 """Taken from the libsonata lib."""
+
 import h5py
 import numpy as np