diff --git a/doc/conf.py b/doc/conf.py
index 2a9689cb43e102cbccd59d5e86418c911e10d64a..a1c4873c39afd1c253bd0f27e1c199272c0e5c40 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -4,6 +4,7 @@
 
 import pathlib
 import time
+
 from importlib.metadata import distribution
 
 # -- General configuration -----------------------------------------------------
diff --git a/pyproject.toml b/pyproject.toml
index a18dee23ca20f738f09725b39f9ac33f4af943b9..efff5fe59c515fb489a7068b7d27daee4c15ed6a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -131,6 +131,10 @@ ignore = [
   "ISC001", # https://docs.astral.sh/ruff/rules/single-line-implicit-string-concatenation/
 ]
 
+[tool.ruff.lint.isort]
+# Use a single line between direct and from import.
+lines-between-types = 1
+
 [tool.ruff.lint.pydocstyle]
 convention = "numpy"
 
diff --git a/src/idiap_devtools/gitlab/__init__.py b/src/idiap_devtools/gitlab/__init__.py
index 977b1f0caa71c0554706547f9608741a68c9da83..cc14423f62c064fec13fd168a433b1e0f757bec3 100644
--- a/src/idiap_devtools/gitlab/__init__.py
+++ b/src/idiap_devtools/gitlab/__init__.py
@@ -9,6 +9,7 @@ import pathlib
 import shutil
 import tarfile
 import tempfile
+
 from io import BytesIO
 
 import gitlab
diff --git a/src/idiap_devtools/gitlab/release.py b/src/idiap_devtools/gitlab/release.py
index ecbb498735a70e270ba68c9b32315a84c1bbf42b..e14656a2d9134d85c93fb7c181a54560a1703a67 100644
--- a/src/idiap_devtools/gitlab/release.py
+++ b/src/idiap_devtools/gitlab/release.py
@@ -7,12 +7,14 @@ import difflib
 import logging
 import re
 import time
+
 from distutils.version import StrictVersion
 
 import gitlab
 import gitlab.v4.objects
 import packaging.version
 import tomlkit
+
 from git import Repo
 from pkg_resources import Requirement
 
diff --git a/tests/test_release.py b/tests/test_release.py
index f7808b6965c8bc7e026aee1b77933e279eae1131..1b5099c3917e57cd486d055f11818d73df043faf 100644
--- a/tests/test_release.py
+++ b/tests/test_release.py
@@ -3,6 +3,7 @@
 # SPDX-License-Identifier: BSD-3-Clause
 
 import pytest
+
 from idiap_devtools.gitlab import release
 from pkg_resources import Requirement