diff -Naur ros-humble-ros-gz-bridge-0.244.9/CMakeLists.txt ros-humble-ros-gz-bridge-0.244.9_new/CMakeLists.txt
--- ros-humble-ros-gz-bridge-0.244.9/CMakeLists.txt	2022-11-03 20:52:26.000000000 +0800
+++ ros-humble-ros-gz-bridge-0.244.9_new/CMakeLists.txt	2023-11-09 22:18:47.000000000 +0800
@@ -43,12 +43,12 @@
   message(STATUS "Compiling against Gazebo Garden")
 # Default to Fortress
 else()
-  find_package(ignition-transport11 REQUIRED)
-  find_package(ignition-msgs8 REQUIRED)
+  find_package(ignition-transport8 REQUIRED)
+  find_package(ignition-msgs5 REQUIRED)
 
   set(GZ_TARGET_PREFIX ignition)
-  set(GZ_MSGS_VER ${ignition-msgs8_VERSION_MAJOR})
-  set(GZ_TRANSPORT_VER ${ignition-transport11_VERSION_MAJOR})
+  set(GZ_MSGS_VER ${ignition-msgs5_VERSION_MAJOR})
+  set(GZ_TRANSPORT_VER ${ignition-transport8_VERSION_MAJOR})
 
   message(STATUS "Compiling against Ignition Fortress")
 endif()