diff --git a/matcha/hifigan/denoiser.py b/matcha/hifigan/denoiser.py
index 452be6a..d912279 100644
--- a/matcha/hifigan/denoiser.py
+++ b/matcha/hifigan/denoiser.py
@@ -1,6 +1,7 @@
 # Code modified from Rafael Valle's implementation https://github.com/NVIDIA/waveglow/blob/5bc2a53e20b3b533362f974cfa1ea0267ae1c2b1/denoiser.py
 
 """Waveglow style denoiser can be used to remove the artifacts from the HiFiGAN generated audio."""
+
 import torch
 
 
diff --git a/matcha/hifigan/env.py b/matcha/hifigan/env.py
index 9ea4f94..a4a649b 100644
--- a/matcha/hifigan/env.py
+++ b/matcha/hifigan/env.py
@@ -1,4 +1,4 @@
-""" from https://github.com/jik876/hifi-gan """
+"""from https://github.com/jik876/hifi-gan"""
 
 import os
 import shutil
diff --git a/matcha/hifigan/meldataset.py b/matcha/hifigan/meldataset.py
index d1b3a90..86d75df 100644
--- a/matcha/hifigan/meldataset.py
+++ b/matcha/hifigan/meldataset.py
@@ -1,4 +1,4 @@
-""" from https://github.com/jik876/hifi-gan """
+"""from https://github.com/jik876/hifi-gan"""
 
 import math
 import os
diff --git a/matcha/hifigan/models.py b/matcha/hifigan/models.py
index 57305ef..28c6a04 100644
--- a/matcha/hifigan/models.py
+++ b/matcha/hifigan/models.py
@@ -1,4 +1,4 @@
-""" from https://github.com/jik876/hifi-gan """
+"""from https://github.com/jik876/hifi-gan"""
 
 import torch
 import torch.nn as nn  # pylint: disable=consider-using-from-import
diff --git a/matcha/hifigan/xutils.py b/matcha/hifigan/xutils.py
index eefadcb..e8ea1ed 100644
--- a/matcha/hifigan/xutils.py
+++ b/matcha/hifigan/xutils.py
@@ -1,4 +1,4 @@
-""" from https://github.com/jik876/hifi-gan """
+"""from https://github.com/jik876/hifi-gan"""
 
 import glob
 import os
diff --git a/matcha/models/baselightningmodule.py b/matcha/models/baselightningmodule.py
index f8abe7b..5775355 100644
--- a/matcha/models/baselightningmodule.py
+++ b/matcha/models/baselightningmodule.py
@@ -2,6 +2,7 @@
 This is a base lightning module that can be used to train a model.
 The benefit of this abstraction is that all the logic outside of model definition can be reused for different models.
 """
+
 import inspect
 from abc import ABC
 from typing import Any, Dict
diff --git a/matcha/models/components/text_encoder.py b/matcha/models/components/text_encoder.py
index 66e7164..5ed6e1e 100644
--- a/matcha/models/components/text_encoder.py
+++ b/matcha/models/components/text_encoder.py
@@ -1,4 +1,4 @@
-""" from https://github.com/jaywalnut310/glow-tts """
+"""from https://github.com/jaywalnut310/glow-tts"""
 
 import math
 
diff --git a/matcha/text/__init__.py b/matcha/text/__init__.py
index 50d7b90..24ed143 100644
--- a/matcha/text/__init__.py
+++ b/matcha/text/__init__.py
@@ -1,4 +1,5 @@
-""" from https://github.com/keithito/tacotron """
+"""from https://github.com/keithito/tacotron"""
+
 from matcha.text import cleaners
 from matcha.text.symbols import symbols
 
diff --git a/matcha/text/cleaners.py b/matcha/text/cleaners.py
index a9d5587..6aa8de3 100644
--- a/matcha/text/cleaners.py
+++ b/matcha/text/cleaners.py
@@ -1,4 +1,4 @@
-""" from https://github.com/keithito/tacotron
+"""from https://github.com/keithito/tacotron
 
 Cleaners are transformations that run over the input text at both training and eval time.
 
diff --git a/matcha/text/numbers.py b/matcha/text/numbers.py
index f99a868..b2ba39e 100644
--- a/matcha/text/numbers.py
+++ b/matcha/text/numbers.py
@@ -1,4 +1,4 @@
-""" from https://github.com/keithito/tacotron """
+"""from https://github.com/keithito/tacotron"""
 
 import re
 
diff --git a/matcha/text/symbols.py b/matcha/text/symbols.py
index 7018df5..f987e46 100644
--- a/matcha/text/symbols.py
+++ b/matcha/text/symbols.py
@@ -1,7 +1,8 @@
-""" from https://github.com/keithito/tacotron
+"""from https://github.com/keithito/tacotron
 
 Defines the set of symbols used in text input to the model.
 """
+
 _pad = "_"
 _punctuation = ';:,.!?¡¿—…"«»“” '
 _letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
diff --git a/matcha/utils/generate_data_statistics.py b/matcha/utils/generate_data_statistics.py
index 305d806..adf886c 100644
--- a/matcha/utils/generate_data_statistics.py
+++ b/matcha/utils/generate_data_statistics.py
@@ -4,6 +4,7 @@ when needed.
 
 Parameters from hparam.py will be used
 """
+
 import argparse
 import json
 import os
diff --git a/matcha/utils/get_durations_from_trained_model.py b/matcha/utils/get_durations_from_trained_model.py
index 0fe2f35..8759c4f 100644
--- a/matcha/utils/get_durations_from_trained_model.py
+++ b/matcha/utils/get_durations_from_trained_model.py
@@ -4,6 +4,7 @@ when needed.
 
 Parameters from hparam.py will be used
 """
+
 import argparse
 import json
 import os
diff --git a/matcha/utils/model.py b/matcha/utils/model.py
index 869cc60..31a7643 100644
--- a/matcha/utils/model.py
+++ b/matcha/utils/model.py
@@ -1,4 +1,4 @@
-""" from https://github.com/jaywalnut310/glow-tts """
+"""from https://github.com/jaywalnut310/glow-tts"""
 
 import numpy as np
 import torch