Look at the maximum leakage current into these pins:
[![enter image description here][1]][1]
You need to choose the pull-up resistor value small enough that the leakage current flowing through it doesn't push the pin input voltage out of the valid range for the logic level you're trying to pull to.
Since \$1\ \mu A \times 10\ k\Omega\$ is only 1 mV, your default choice is fine. [1]: https://i.sstatic.net/v7Eko.png