diff --git a/tests/test_inspections.py b/tests/test_inspections.py
index 534e70d..33c6aca 100644
--- a/tests/test_inspections.py
+++ b/tests/test_inspections.py
@@ -1,16 +1,12 @@
 from alitra import Frame, Position
-from robot_interface.models.mission.task import (
-    RecordAudio,
-    TakeImage,
-    TakeThermalVideo,
-)
+from robot_interface.models.mission.task import RecordAudio, TakeImage, TakeThermalVideo
 
 from isar_robot import inspections
 
 target = Position(x=0, y=0, z=0, frame=Frame("robot"))
 
 
-def test_create_image():
+def test_create_image() -> None:
     task_actions = TakeImage(target=target)
 
     inspection_image = inspections.create_image(task_actions)
@@ -18,7 +14,7 @@ def test_create_image():
     assert inspection_image.metadata.file_type == "jpg"
 
 
-def test_create_video():
+def test_create_video() -> None:
     task_actions = TakeImage(target=target)
 
     inspection_video = inspections.create_video(task_actions)
@@ -26,7 +22,7 @@ def test_create_video():
     assert inspection_video.metadata.file_type == "mp4"
 
 
-def test_create_thermal_video():
+def test_create_thermal_video() -> None:
     task_actions = TakeThermalVideo(target=target, duration=10)
 
     inspection_video = inspections.create_thermal_video(task_actions)
@@ -35,7 +31,7 @@ def test_create_thermal_video():
     assert inspection_video.metadata.duration == 10
 
 
-def test_create_audio():
+def test_create_audio() -> None:
     task_actions = RecordAudio(target=target, duration=10)
 
     inspection_recording = inspections.create_audio(task_actions)
diff --git a/tests/test_telemetry.py b/tests/test_telemetry.py
index 4a5baa6..cb71e91 100644
--- a/tests/test_telemetry.py
+++ b/tests/test_telemetry.py
@@ -1,14 +1,14 @@
 from isar_robot.telemetry import _get_battery_level, _get_pressure_level
 
 
-def test_get_battery_level():
+def test_get_battery_level() -> None:
     for _ in range(100):
         pressure_level: float = _get_battery_level()
         assert pressure_level >= 50
         assert pressure_level <= 100
 
 
-def test_get_pressure_level():
+def test_get_pressure_level() -> None:
     for _ in range(100):
         pressure_level: float = _get_pressure_level()
         assert pressure_level >= 0.011