diff --git a/Tools/ros2/ardupilot_dds_tests/ardupilot_dds_tests/time_listener.py b/Tools/ros2/ardupilot_dds_tests/ardupilot_dds_tests/time_listener.py
index 8ac693a958..da086a7c07 100755
--- a/Tools/ros2/ardupilot_dds_tests/ardupilot_dds_tests/time_listener.py
+++ b/Tools/ros2/ardupilot_dds_tests/ardupilot_dds_tests/time_listener.py
@@ -13,7 +13,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 
-"""Subscribe to Time messages on topic /ROS2_Time."""
+"""Subscribe to Time messages on topic /ap/clock."""
 import rclpy
 import time
 
@@ -22,14 +22,14 @@ from builtin_interfaces.msg import Time
 
 
 class TimeListener(Node):
-    """Subscribe to Time messages on topic /ROS2_Time."""
+    """Subscribe to Time messages on topic /ap/clock."""
 
     def __init__(self):
         """Initialise the node."""
         super().__init__("time_listener")
 
         # Declare and acquire `topic` parameter.
-        self.declare_parameter("topic", "ROS2_Time")
+        self.declare_parameter("topic", "ap/clock")
         self.topic = self.get_parameter("topic").get_parameter_value().string_value
 
         # Subscriptions.
diff --git a/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_navsat_msg_received.py b/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_navsat_msg_received.py
index c1c0326967..a9909ecaed 100644
--- a/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_navsat_msg_received.py
+++ b/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_navsat_msg_received.py
@@ -39,7 +39,7 @@ def launch_description(sitl_dds):
 
 
 class NavSatFixListener(rclpy.node.Node):
-    """Subscribe to NavSatFix messages on /ROS2_NavSatFix0."""
+    """Subscribe to NavSatFix messages on /ap/navsat/navsat0."""
 
     def __init__(self):
         """Initialise the node."""
@@ -47,7 +47,7 @@ class NavSatFixListener(rclpy.node.Node):
         self.msg_event_object = threading.Event()
 
         # Declare and acquire `topic` parameter
-        self.declare_parameter("topic", "ROS2_NavSatFix0")
+        self.declare_parameter("topic", "ap/navsat/navsat0")
         self.topic = self.get_parameter("topic").get_parameter_value().string_value
 
     def start_subscriber(self):
@@ -88,7 +88,7 @@ def test_navsat_msgs_received(sitl_dds, launch_context):
         node = NavSatFixListener()
         node.start_subscriber()
         msgs_received_flag = node.msg_event_object.wait(timeout=10.0)
-        assert msgs_received_flag, "Did not receive 'ROS2_NavSatFix0' msgs."
+        assert msgs_received_flag, "Did not receive 'ap/navsat/navsat0' msgs."
     finally:
         rclpy.shutdown()
 
diff --git a/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_time_msg_received.py b/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_time_msg_received.py
index 851b7805ed..b32864e662 100644
--- a/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_time_msg_received.py
+++ b/Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_time_msg_received.py
@@ -37,7 +37,7 @@ def launch_description(sitl_dds):
 
 
 class TimeListener(rclpy.node.Node):
-    """Subscribe to Time messages on /ROS2_Time."""
+    """Subscribe to Time messages on /ap/clock."""
 
     def __init__(self):
         """Initialise the node."""
@@ -45,7 +45,7 @@ class TimeListener(rclpy.node.Node):
         self.msg_event_object = threading.Event()
 
         # Declare and acquire `topic` parameter.
-        self.declare_parameter("topic", "ROS2_Time")
+        self.declare_parameter("topic", "ap/clock")
         self.topic = self.get_parameter("topic").get_parameter_value().string_value
 
     def start_subscriber(self):