diff --git a/humble/distribution.yaml b/humble/distribution.yaml
index d1a0442a328e0..80e7afc6351d7 100644
--- a/humble/distribution.yaml
+++ b/humble/distribution.yaml
@@ -2944,13 +2944,14 @@ repositories:
       - cmake_generate_parameter_module_example
       - generate_parameter_library
       - generate_parameter_library_example
+      - generate_parameter_library_example_external
       - generate_parameter_library_py
       - generate_parameter_module_example
       - parameter_traits
       tags:
         release: release/humble/{package}/{version}
       url: https://github.com/ros2-gbp/generate_parameter_library-release.git
-      version: 0.3.9-1
+      version: 0.4.0-1
     source:
       type: git
       url: https://github.com/PickNikRobotics/generate_parameter_library.git