diff --git a/src/crepes/__init__.py b/src/crepes/__init__.py
index 9fb3295..e4ece93 100644
--- a/src/crepes/__init__.py
+++ b/src/crepes/__init__.py
@@ -4,12 +4,11 @@
 systems, which transform point predictions into prediction intervals
 and cumulative distributions, respectively.
 
-Author : Henrik Boström (bostromh@kth.se)
+Author: Henrik Boström (bostromh@kth.se)
 
 Copyright 2021 Henrik Boström
 
 License: BSD 3 clause
-
 """
 from crepes.base import ConformalRegressor, ConformalPredictiveSystem
 
diff --git a/src/crepes/base.py b/src/crepes/base.py
index 263fb96..33c1cde 100644
--- a/src/crepes/base.py
+++ b/src/crepes/base.py
@@ -4,12 +4,11 @@
 systems, which transform point predictions into prediction intervals
 and cumulative distributions, respectively.
 
-Author : Henrik Boström (bostromh@kth.se)
+Author: Henrik Boström (bostromh@kth.se)
 
 Copyright 2021 Henrik Boström
 
 License: BSD 3 clause
-
 """
 
 # To do:
diff --git a/src/crepes/fillings.py b/src/crepes/fillings.py
index b06e518..210ac0e 100644
--- a/src/crepes/fillings.py
+++ b/src/crepes/fillings.py
@@ -4,12 +4,11 @@
 out-of-bag calibration, for conformal regressors and conformal
 predictive systems.
 
-Author : Henrik Boström (bostromh@kth.se)
+Author: Henrik Boström (bostromh@kth.se)
 
 Copyright 2021 Henrik Boström
 
 License: BSD 3 clause
-
 """
 
 # To do: