Update prosody

Dear All,
I just update the prosody by following the steps in [How to] How do I update Prosody? - Developers - Jitsi Community Forum - developers & users.
The update happened smoothly. After updating, I recheck the prosody version, then I got
“apt list -a prosody
Listing… Done
prosody/unknown,now 0.11.9-1~bionic1 amd64 [installed]
prosody/bionic 0.10.0-1build1 amd64”
Does it mean that I have two installed prosodies? Which one is currently used ?
In other words, is the updating procedure successful?
Many thanks

Check

dpkg -l "prosody*"