pimp3 cache sucks

More than once I upgraded - or so I thought - counterparty-lib only to find that I’m running the same version. I ended up working around that by installing from source.
But today I paid more attention. Lo and behold…

 $ sudo pip3 install --upgrade counterparty-lib
Collecting counterparty-lib
  Using cached counterparty-lib-9.52.0.tar.gz
Requirement already up-to-date: appdirs in /usr/local/lib/python3.4/dist-packages (from counterparty-lib)

Cached? All right, then.

 $ sudo pip3 install --no-cache-dir counterparty-lib
Collecting counterparty-lib
  Downloading counterparty-lib-9.52.0.tar.gz (306kB)
    100% |████████████████████████████████| 307kB 2.3MB/s

And the result is…

  Running setup.py install for counterparty-lib ... done
Successfully installed counterparty-lib-9.52.0

WTF???
If anyone wants to troubleshoot be my guest. I’m going back to the installing from the source.
After installing from https://github.com/CounterpartyXCP/counterparty-lib/archive/9.53.0.zip:

$ counterparty-server -V
counterparty-server v1.1.1; counterparty-lib v9.53.0