Hello I asked a similar thing to Fedora mailing list. Anyway, I have the same question for my package into openSUSE. I must update the theme depending of Pango version. So I added %trigger sections (in addition of %prep section). Package submitted: https://build.opensuse.org/package/show/X11:common:Factory/human-theme-gtk With 15.4 and 15.5, the following error occurs: error: line 97: Trigger fired by the same package is already defined in spec file: %triggerin -- pango < 1.44 To fix the problem, I have an idea! (copy pasted from my debian/ubuntu package in PPA). But not sure if this is acceptable for my spec file. Updated spec: https://build.opensuse.org/package/show/home:luigifab:branches:X11:common:Fa... Only one %trigger section (and sed commands removed from %prep section) But usage of rpm command. Can I do that? If I'm not wrong, the trigger is executed: - when my package is installed or updated - when pango is updated Thanks!