  We consider $\alpha'^2$ curvature corrections to the action of an NS5-brane
which plays the key role in the metastability analysis of warped anti-D3-brane
uplifts by Kachru, Pearson and Verlinde (KPV). Such corrections can
dramatically alter the KPV analysis. We find that for the
$\alpha'^2$-corrections to be sufficiently small to recover essentially the
leading-order KPV potential one needs a surprisingly large $S^3$ radius,
corresponding to $g_sM > 20$. In the context of the Large Volume Scenario (LVS)
this implies a D3-tadpole of at least $\mathcal{O}(10^3-10^4)$. However, large
$\alpha'^2$-corrections do not necessarily spoil the uplift in KPV. Rather, as
the curvature corrections lower the tension of the brane, a novel uplifting
mechanism suggests itself where the smallness of the uplift is achieved by a
tuning of curvature corrections. A key underlying assumption is the existence
of a dense discretuum of $g_s$. This new mechanism does not require a deep
warped throat, thereby sidestepping the main difficulty in uplifting KKLT and
LVS. However, all of the above has to be treated as a preliminary exploration
of possibilities since, at the moment, not all relevant correction at the order
$\alpha'^2$ are known.
