diff --git a/Tools/ros2/ardupilot_dds_tests/package.xml b/Tools/ros2/ardupilot_dds_tests/package.xml
index 491021016a..c3eb345058 100644
--- a/Tools/ros2/ardupilot_dds_tests/package.xml
+++ b/Tools/ros2/ardupilot_dds_tests/package.xml
@@ -37,8 +37,7 @@
   <test_depend>python3-pytest</test_depend>
   <test_depend>rclpy</test_depend>
   <test_depend>sensor_msgs</test_depend>
-  <test_depend>python-scipy</test_depend>
-
+  <test_depend>python3-scipy</test_depend>
 
   <export>
     <build_type>ament_python</build_type>
diff --git a/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_geopose_msg_received.py b/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_geopose_msg_received.py
index 93e750b01e..64bb0329bd 100644
--- a/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_geopose_msg_received.py
+++ b/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_geopose_msg_received.py
@@ -49,7 +49,7 @@ def ros_quat_to_heading(quat):
 
 
 def validate_position_cmac(position):
-    """Returns true if the vehicle is at CMAC"""
+    """Return true if the vehicle is at CMAC."""
     LAT_LON_TOL = 1e-5
     return (
         math.isclose(position.latitude, CMAC_LAT, abs_tol=LAT_LON_TOL)
@@ -59,12 +59,12 @@ def validate_position_cmac(position):
 
 
 def validate_heading_cmac(orientation):
-    """Returns true if the vehicle is facing the right way for CMAC"""
+    """Return true if the vehicle is facing the right way for CMAC."""
     return math.isclose(ros_quat_to_heading(orientation), CMAC_HEADING)
 
 
 class GeoPoseListener(rclpy.node.Node):
-    """Subscribe to GeoPoseStamped messages"""
+    """Subscribe to GeoPoseStamped messages."""
 
     def __init__(self):
         """Initialise the node."""