diff --git a/demo_cpp/11_pointcloud_data.cpp b/demo_cpp/11_pointcloud_data.cpp
index 2cebe91..84326f8 100644
--- a/demo_cpp/11_pointcloud_data.cpp
+++ b/demo_cpp/11_pointcloud_data.cpp
@@ -28,7 +28,10 @@ int main(int argc, char **argv)
 
   node = std::make_shared<rclcpp::Node>("pointcloud_data_node");
   auto pc_sub = node->create_subscription<sensor_msgs::msg::PointCloud2>(
-      "/kinect2/sd/points", 1, PointcloudCallback);
+    "/kinect2/sd/points",
+    rclcpp::QoS(rclcpp::QoSInitialization::from_rmw(rmw_qos_profile_default)).best_effort(),
+    PointcloudCallback
+  );
 
   rclcpp::spin(node);
 
diff --git a/demo_cpp/11_pointcloud_objects.cpp b/demo_cpp/11_pointcloud_objects.cpp
index 7799a3f..f8d5f8d 100644
--- a/demo_cpp/11_pointcloud_objects.cpp
+++ b/demo_cpp/11_pointcloud_objects.cpp
@@ -113,7 +113,10 @@ int main(int argc, char **argv)
   tf_listener_ = std::make_shared<tf2_ros::TransformListener>(*tf_buffer_);
 
   auto pc_sub = node->create_subscription<sensor_msgs::msg::PointCloud2>(
-      "/kinect2/sd/points", 1, PointcloudCallback);
+    "/kinect2/sd/points",
+    rclcpp::QoS(rclcpp::QoSInitialization::from_rmw(rmw_qos_profile_default)).best_effort(),
+    PointcloudCallback
+  );
 
   rclcpp::spin(node);
 
diff --git a/demo_cpp/11_pointcloud_objects_class.cpp b/demo_cpp/11_pointcloud_objects_class.cpp
index 808042a..4e3785c 100644
--- a/demo_cpp/11_pointcloud_objects_class.cpp
+++ b/demo_cpp/11_pointcloud_objects_class.cpp
@@ -20,7 +20,9 @@ public:
     tf_listener_ = std::make_shared<tf2_ros::TransformListener>(*tf_buffer_);
 
     pc_sub_ = this->create_subscription<sensor_msgs::msg::PointCloud2>(
-        "/kinect2/sd/points", 10, std::bind(&PointcloudObjects::pointcloudCallback, this, std::placeholders::_1));
+        "/kinect2/sd/points", 
+        rclcpp::QoS(rclcpp::QoSInitialization::from_rmw(rmw_qos_profile_default)).best_effort(),
+        std::bind(&PointcloudObjects::pointcloudCallback, this, std::placeholders::_1));
   }
 
 private: