Hello,
The priority of manic-proposed is lower (100) than mantic (500). You can override it in `/etc/apt/preferences.d`, see `/usr/share/doc/apt/examples` or manually install the package you want from mantic-proposed:
``` apt-get install gnome-shell-extension-ubuntu-dock=87ubuntu2 ```
Hello,
The priority of manic-proposed is lower (100) than mantic (500). You can override it in `/etc/apt/ preferences. d`, see `/usr/share/ doc/apt/ examples` or manually install the package you want from mantic-proposed:
``` extension- ubuntu- dock=87ubuntu2
apt-get install gnome-shell-
```