  Using {\it Gaia} Early Data Release 3 (EDR3) parallaxes and Bayesian
inference, we infer a parallax of the Westerlund 1 (Wd1) cluster. We find a
parallax of $0.34\pm{0.05}$ mas corresponding to a distance of
$2.8^{+0.7}_{-0.6}$ kpc. The new {\it Gaia} EDR3 distance is consistent with
our previous result using {\it Gaia} DR2 parallaxes. This confirms that Wd1 is
less massive and older than previously assumed. Compared to DR2, the EDR3
individual parallax uncertainties for each star decreased by 30\%. However, the
aggregate parallax uncertainty for the cluster remained the same. This suggests
that the uncertainty is dominated by systematics, which is possibly due to
crowding, motions within the cluster, or motions due to binary orbits.
