diff --git a/qgispluginci/release.py b/qgispluginci/release.py
index bedcc99b..5214007c 100644
--- a/qgispluginci/release.py
+++ b/qgispluginci/release.py
@@ -390,7 +390,7 @@ def upload_plugin_to_osgeo(username: str, password: str, archive: str):
 
 
 def check_release_keywords(release_version: str) -> str:
-    """ Check if we are releasing some special version shortcut. """
+    """Check if we are releasing some special version shortcut."""
     if release_version not in ("latest", "next"):
         return release_version
 
diff --git a/qgispluginci/utils.py b/qgispluginci/utils.py
index 312eee94..98ffa965 100644
--- a/qgispluginci/utils.py
+++ b/qgispluginci/utils.py
@@ -14,7 +14,7 @@ def replace_in_file(file_path: str, pattern, new: str, encoding: str = "utf8"):
 
 
 def append_to_file(file_path: str, new_line: str):
-    """ Append a line in a file. """
+    """Append a line in a file."""
     with open(file_path, "a", encoding="utf8") as f:
         f.write("{}\n".format(new_line))
 
diff --git a/qgispluginci/version_note.py b/qgispluginci/version_note.py
index 284fcb1f..23f72923 100644
--- a/qgispluginci/version_note.py
+++ b/qgispluginci/version_note.py
@@ -31,7 +31,7 @@ def version(self) -> str:
             return f"{self.major}.{self.minor}.{self.patch}"
 
     def increment_pre_release(self) -> str:
-        """ Increment the pre-release string. """
+        """Increment the pre-release string."""
         items = self.prerelease.split(".")
 
         numbers = "".join([i for i in self.prerelease if i.isdigit()])
@@ -45,7 +45,7 @@ def increment_pre_release(self) -> str:
         return f"{items[0]}.{int(numbers) + 1}"
 
     def next_version(self) -> NamedTuple:
-        """ Increment the pre-release string or the patch. """
+        """Increment the pre-release string or the patch."""
         # "pre" is not supported by QGIS
         # https://github.com/qgis/QGIS/blob/master/python/pyplugin_installer/version_compare.py
         if not self.prerelease:
diff --git a/test/test_release.py b/test/test_release.py
index e9d14a84..d1bb792d 100644
--- a/test/test_release.py
+++ b/test/test_release.py
@@ -180,7 +180,7 @@ def test_release_changelog(self):
         )
 
     def test_release_latest_next(self):
-        """ Test releasing the latest and next versions. """
+        """Test releasing the latest and next versions."""
         keywords = ("next", "latest")
         for keyword in keywords:
             with self.subTest(i=keyword):
diff --git a/test/test_utils.py b/test/test_utils.py
index e7888a05..7b9fb6a9 100644
--- a/test/test_utils.py
+++ b/test/test_utils.py
@@ -50,7 +50,7 @@ def test_version_note_from_tag(self):
         self.assertFalse(version.is_prerelease)
 
     def test_next_version(self):
-        """ Test to guess the next version. """
+        """Test to guess the next version."""
         self.assertEqual(parse_tag("10.1.0").next_version().version, "10.1.1-alpha")
         self.assertEqual(
             parse_tag("10.1.0-beta").next_version().version, "10.1.0-beta.1"