diff --git a/system/diagnostic_graph_utils/package.xml b/system/diagnostic_graph_utils/package.xml
index b777ee530ecc9..9c860d62a7928 100644
--- a/system/diagnostic_graph_utils/package.xml
+++ b/system/diagnostic_graph_utils/package.xml
@@ -14,7 +14,6 @@
   <depend>diagnostic_msgs</depend>
   <depend>rclcpp</depend>
   <depend>rclcpp_components</depend>
-  <depend>tier4_debug_msgs</depend>
   <depend>tier4_system_msgs</depend>
 
   <test_depend>ament_lint_auto</test_depend>