I'm developing a plugin (MyPlugin) which combines some security functions to use it as a standard plugin for my next Grails application. It integrates the Spring-Security-Core and Spring-Security-UI plugins, and by its installation all dependencies should be installed automatically by adding the dependencies in the BuildConfig like: plugins { compile: ...} So far everything works fine, but in MyPlugin I'm changing the behaviour of the Spring-Security-UI plugin (password encoding in User Domain), by overwriting the UserController. Executing MyPlugin leads to the expected behaviour and new Users are created using the correct Controller. However, when installing MyPlugin in another Grails application, this behaviour fails and the original UserController of the Spring-Security-Ui plugin is used. I tried to solve this by configuring the dependsOn and loadAfter properties in the GrailsPlugin file, but without any success. Is it possible to fix this? Or is it only possible to overwrite behaviour/controllers in the main application?