Source: grilo-plugins Version: 0.3.16-3 Ubuntu's version of grilo-plugins is built with lua 5.4 instead of lua 5.3. I believe this was done so that Ubuntu could have lua 5.4 in "main" and demote 5.3 to "universe".
If you install ubuntu-dev-tools and run these commands, you'll see that a lot of stuff in Debian uses 5.3 and a lot uses 5.4. It doesn't look like Debian Developers are trying to get rid of 5.3 in the near future but it still might be good to switch to the newer version. reverse-depends -r sid -b liblua5.3-dev reverse-depends -r sid -b liblua5.4-dev You can build grilo-plugins with 5.4 by simply updating the Build-Depends. Thank you, Jeremy Bícha