diff --git a/tasks.py b/tasks.py
index afd366e..0bd11ff 100644
--- a/tasks.py
+++ b/tasks.py
@@ -1,4 +1,5 @@
 """Tasks to release the package."""
+
 import os
 import shutil
 
diff --git a/ubermagtable/__init__.py b/ubermagtable/__init__.py
index 4137a81..3af2a1f 100644
--- a/ubermagtable/__init__.py
+++ b/ubermagtable/__init__.py
@@ -1,4 +1,5 @@
 """Manipulation of tabular data."""
+
 import importlib.metadata
 import os
 
diff --git a/ubermagtable/util/__init__.py b/ubermagtable/util/__init__.py
index 79f451e..d5760c7 100644
--- a/ubermagtable/util/__init__.py
+++ b/ubermagtable/util/__init__.py
@@ -1,2 +1,3 @@
 """Utility tools"""
+
 from .util import columns, data, units