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Given the lack of observational constraints at these masses, we analyze GW190521 considering two different priors for the binary's masses: uniform in mass ratio and source-frame total mass, and uniform in source-frame component masses. For the uniform in mass-ratio prior, we find that the component masses are $m_1^{\\mathrm{src}} = 168_{-61}^{+15}\\,\\mathrm{M}_{\\odot}$ and $m_2^{\\mathrm{src}} = 16_{-3}^{+33}\\,\\mathrm{M}_{\\odot}$. 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